All about photo.com: photo contests, photography exhibitions, galleries, photographers, books, schools and venues.
Win a Solo Exhibition in April 2026 + An Exclusive Interview!
Win a Solo Exhibition in April 2026 + An Exclusive Interview!
Saul Bromberger
Saul Bromberger
Saul Bromberger

Saul Bromberger

Country: Israel/United States
Birth: 1957

Saul was born in Israel in 1957 and emigrated to America with his family when he was 9-years old, and learned about the American culture and way of life through his work as a newspaper photographer. He has worked with his wife Sandra Hoover as a photography team for 35+ years.

Throughout their years of working together they have produced documentary and personal projects with the first one being their 7-year photo essay project 'Pride - Hearts of the Movement: The San Francisco Gay & Lesbian Freedom Day Parade: 1984-1990,' when the LGBTQ community was marching for its civil rights and uniting in fighting the horror of AIDS.

Their other documentary photo essays include 'House of Angels-Living with AIDS at the Bailey-Boushay House: 1992-1995, 1997,' about the lives of people in their last months of life at the first AIDS hospice in America in Seattle, WA., scenes of daily life in American communities with 'Our American Portraits: 1978-2006,' and are currently working on an ongoing project about the men and women who are long term HIV survivors with 'Portrait of the AIDS Generation.'

They've had solo exhibits at PhotoCentral Gallery in Hayward, CA., and at Moorpark College, CA., and been part of numerous group shows in galleries that include the Harvey Milk Photo Center in San Francisco, CA.

Their work is currently being archived by the Dolph Briscoe Center of American History, at the University of Texas in Austin, TX., and starting on 9.14.2021, they will be represented by ffoto.com in Toronto, Canada.

American Portraits: 1978-2006
Many years later now that I am 63 years old, I have learned that it was in my early 20's when I had found my voice. It was then that I realized that my point of view had value and that I had something important to say and share with the world. I was capturing poignant scenes in our communities that I felt were significant for how they described the American culture, moments that captured American as well as universal sensibilities. Scenes that captured essential truths about people's hopes and their successes, their challenges and despair, their individuality and their relationships, during their day to day lives in our American communities. Scenes that defined an American way of life for me.

Over the 28 years of this documentary project, from 1978-2006, this is what drove me to create a portrait of America that I had observed as an outsider, because of my experiences as an immigrant where I never really fit into American society. I was born in Israel in 1957, immigrated to America as a 9-year-old with my family in 1967, and as a teenager I helped my parents run our restaurant, while in high school I barely said a word in 4-years.

It was through photography then that I found myself, as I discovered over time that I could connect with people, reveal my personality, express my opinion, interpret what I saw and felt, and be recognized and honored for my way of seeing.

Starting in the late 1970's, I found myself gravitating to scenes that pulsated with American themes and values. I had become a photo-journalist working for several newspaper photography staffs in California and Washington State, and oftentimes during my assignments I also captured these scenes in social gatherings, parades, business events, political receptions, at county fairs, and much more, scenes that excited me for how they captured an America that I was beginning to understand. Scenes where many people, often white and wealthy, have a life of excess and privilege, while many other people struggle just to survive. People who live in small rural towns and in the larger cities, each group with its own pace of life and traditions, with American values that are vastly different from one another.

An America that I found fascinating and perplexing, that I was documenting from an outsider's point of view.

Solo Exhibition September 2021

American Portraits: 1978-2006
 

Inspiring Portfolios

Call for Entries
AAP Magazine #56 Shadows
Publish your work in our printed magazine and win $1,000 cash prizes
 
Stay up-to-date  with call for entries, deadlines and other news about exhibitions, galleries, publications, & special events.

More Great Photographers To Discover

Tomasz Gudzowaty
Tomasz Gudzowaty is a Polish documentary filmmaker, portrait and art photographer, who gained international recognition through numerous publications and awards, most notably – in World Press Photo in which he succeeded nine times. He is also a multiple winner or finalist of such competitions as: Pictures of the Year International, NPPA's Best of Photojournalism, International Photography Awards, B&W Spider Awards, and National Portrait Gallery's Taylor Wessing Photographic Portrait Prize. Apart from magazine publications (Cartier Art, Max, L’Equipe, The Guardian, Newsweek, Forbes, National Geographic Travel, Time, Photo, The British Journal of Photography, Spook, Vogue Italia and L’Uomo Vogue, to name but a few), his works appeared in several books from the leading publishing houses, such as Hatje Cantz and Steidl. He has been invited as lecturer and assistant researcher at Krzysztof Kieślowski Faculty of Radio and Television University of Silesia in Katowice, where he received his doctorate in arts in 2018. He traveled to over 100 countries on all continents for his photographic projects, pursuing diverse subjects, with special focus on wildlife, sport, and social issues. In recent years, portraiture has become essential in his photography. Apart from magazine publications, his works appeared in several books, and were presented at individual exhibitions at museums and galleries worldwide. According to one survey, Tomasz Gudzowaty is the best known name in contemporary Polish photography. Gudzowaty's style was described as very individual and highly elaborated aesthetically, prompting questions about the limits of classic photography and the new creative possibilities of the medium. Most of his projects have been done in black and white, in the form of photo essays consisting usually of twelve images. As a sport photographer, he couples his interest in the metaphysics of sport with social awareness. Among the artists who influenced him most, he frequently names Sebastião Salgado. In 2007 Gudzowaty started to use a large format camera (Linhof Master Technika) for his projects, almost completely abandoning 35mm SLR. The change had a direct impact on his style, favoring even more elaborated composition and playing with a shallow depth of focus. He has also tended to include more portraits in his subsequent projects. Portraiture has become a strong strand in his art, a fact that has been reflected in his newer achievements in such competitions as The Taylor Wessing Photographic Portrait Prize awarded by the National Gallery London, or Spider Black And White Photo Awards.Source: Wikipedia
Charles Muir Lovell
United States
1952
Born in Chicago, Charles Muir Lovell lives and works in New Orleans. He holds an MFA in photography from Central Washington University and a BS in photography from East Texas State University. He began photographing as a young man traveling throughout Europe and South America. He continued his photography practice during his over 20 years as a museum director and curator, a career that took him from the Pacific Northwest to the Southwest and Deep South, everywhere finding distinctive cultures and photography subjects. Lovell has long been passionate about photographing people within their cultures. Upon moving to New Orleans in 2008, he began documenting the city's second line parades, social aid and pleasure clubs, and brass bands, capturing and preserving for posterity a unique and vibrant part of Louisiana's rich cultural heritage. An earlier series based on religious processions in Mexico, El Favor de los Santos, was a Rockefeller Foundation–supported international traveling exhibition and resulted in a book published in 1999 by the University of New Mexico Press, Art and Faith in Mexico. Lovell's photographs have been exhibited nationally and internationally, are found in several permanent collections, including the New Orleans Museum of Art and the Historic New Orleans Collection, and can be seen at www.charleslovell.com and on Instagram @charleslovellart. He received the 2020 Michael P. Smith Documentary Photographer of the Year Award from the Louisiana Endowment for the Humanities. Lovell has also developed a series of photographs called Language of the Streets he began while an artist-in-residence at the Emily Harvey Foundation in Venice, Italy, in 2006–2007. He returned to Venice for a second residency in 2015 and was scheduled to return in 2021 until coronavirus shut everything down. He has continued this series in Naples, Paris, Mexico City, New York and New Orleans. Statement "As a young man, I traveled through Europe and Latin America with my Nikon, living as one of the family with friends in the countries I visited. My travels hugely influenced my work, opening my eyes to how other people lived. As a visual artist, I gravitated toward photographing people within their cultures, trying to capture on film something true about their lives. College and grad school took me to small-town Texas (Commerce) and Washington (Ellensburg), and a long museum career took me to the Pacific Northwest (Tacoma), Southwest (Yuma, Ariz.; Las Cruces and Taos, N.M.) and Deep South (Greenville and Greensboro, N.C., and New Orleans); everywhere I found distinctive cultures and compelling photography subjects. While living in New Mexico, I traveled in Mexico photographing Holy Week religious processions, foreshadowing my current and most significant photographic project: documenting and preserving New Orleans' unique second line parade culture. Upon moving to New Orleans, I became fascinated by the pageantry and celebratory nature of the city's African American cultural tradition of second line parades. I was captivated by their visual richness, their ritual and history, and how they express a vibrant cultural and artistic heritage, intensely alive yet intimately connected to the past. The massive amount of industry that the social aid and pleasure clubs invest in creating their magnificent costumes, decorations, baskets, umbrellas and banners-truly a labor of love-blew me away. Documenting these visually stunning parades quickly became a passion-and a commitment. For more than 10 years, I've followed the weekly parades, taking tens of thousands of color photographs. I've formed friendly relationships with members of the social aid and pleasure clubs that stage the parades, allowing me behind-the-scenes access, resulting in distinctive photographs. My color photographs vividly capture the paraders and brass bands in their elaborate custom-designed, hand-sewn costumes, and the dancing parade followers, revealing the festive mood of these sacred moments of cultural celebration, and preserving them for posterity. I take great care to portray these spirited-and spiritual-ceremonial moments honestly, sensitively and respectfully. In the 20th century other American photographers-notably Ralston Crawford, Lee Friedlander and Michael P. Smith - also documented this cultural tradition, but in black and white. My use of color lets me capture not just the atmosphere of the parades but also their incredible vividness. Formerly I used traditional photographic techniques, but now I embrace new digital methods, bringing to the subject a fresh approach for the 21st century. Taken as a whole, my photographs capture the rich cultural history of second-line parades, a significant artistic and ceremonial tradition deeply rooted in New Orleans' African American culture and unparalleled elsewhere in the United States. I hope that my photographs will increase awareness of the importance of preserving second-line parade culture and contribute to the understanding of Louisiana and its culture, which has sometimes suffered from scholarly neglect and seemingly insurmountable cultural and economic challenges. Another photographic series I have pursued over the years is Language of the Streets, which began taking shape in 2007 during an artist residency at the Emily Harvey Foundation in Venice, Italy. After working in large-format silver gelatin and color photography for over 20 years, I began exploring digital photography using a small-format digital camera. Upon my return to New Mexico, I learned digital printing and exhibited my Venice work at a solo exhibition at the Taos Center for the Arts in 2008. My residency in Venice was extremely influential in the work I began doing after moving to New Orleans in 2008. I began using a medium-format digital camera to make higher-resolution color photographs. Since 2009, I have fully transitioned to a digital practice. I make my own prints on an Epson inkjet printer and work with professional printers on larger works. From the experience of taking street photographs in Venice, I continued my series Language of the Streets in New Orleans, as well as in Naples, the Amalfi Coast, Paris, Mexico City and New York City. In 2015, I was invited back to the Emily Harvey Foundation, where I designed and presented an accordion artist's book, or leporello, featuring the Venice series of photos. Off the Street: New Orleans and Venice, part of the Language of the Streets series, investigates similarities and differences between the two cities, which share a striking mixture of high and low, old and new, closeness to and dependence upon water, a vital tourism sector, a proliferation of graffiti and outdoor art alongside unparalleled historic architecture. My street photographs from the two cities explore back streets not seen by tourists frequenting commercial settings like the French Quarter or Plaza San Marco. I strive to capture the texture of the cities' largely unseen back streets. Both cities also have world-renowned contemporary art competitions: the Venice Biennale and the triennial Prospect New Orleans. Works from my Venice series were exhibited alongside photographs from Mexico City in 2016 at the Contemporary Art Center, New Orleans, in Experiments in Anarchitecture, curated by Andrea Andersson, and in 2017, works from the Venice series were included in Project 387, curated by Berty Skuber at the Archivio Emily Harvey in Venice. " -- Charles Muir Lovell
Kamil Vojnar
Czech Republic
1962
Kamil Vojnar was born in the former Czechoslovakia in 1962. He studied at the School of Graphic Arts in Prague and began his career as a Graphic Designer. He left the country illegally (still Communist at the time) and moved to Vienna, and then eventually became a US citizen and finished his studies at the Art Institute of Philadelphia. He continued his career in Graphic Design which later led to illustration and imagery based on photography, working mostly for book and music publishing houses in New York City. At the same time, he continued to make his own imagery. After meeting his partner and having children, going back and forth between France and New York, they finally settled in St. Remy de Provence in South France where Vojnar has concentrated on his own work since 2005. He opened up an Atelier in St. Remy and then one in Paris in 2009, both of which carry his own work.His work consists of images digitally layered from many different photographs and textures. They are mixed-media archival prints on fine art paper or mounted on canvas. Some of his images are layered pictures printed on semitransparent Thai paper. These unique photomontages are then varnished with oil and wax, and on occasion painted with oil paints. Kamil, as a painter, points out, “In a painting, you can paint anything you want. In the photographic [medium], it must, on some level, exist first. That tension between what exists and what is made up is what interests me.” Thus, his images are often subject to very different interpretations (Source: Verve Gallery) About ElsewhereWell, … why … why "e l s e w h e r e"…?Because, … not really here, because not there or … over there, because … somewhere else, … "e l s e w h e r e"!!!In thousand years old small town in south France, I have little studio, tiny Gallery, up on the main street.People from all around the world come to this town. They walk it's ancient streets. Some see my place, some walk in and look around.And they ask … why, … the sky outside is blue, … the buildings ochre yellow, the olive trees pale green, … why are those pictures musty, sepia, dark. Why is their soul heavy? What happened? What has happened to me!And I say … I don't know, … they come to me that way. They are not really from here, they are not so much from there. They arrive from ..."elsewhere". I am just a pair of hands making them happen.I didn't look for them, I didn't choose them. They came to me, … they choose me!Artist? No. … Common' I am no Artist! I just make those little pictures. Just because they happen to me.And because … I cannot do anything else. I cannot do anything else, at least, until every last of them is out, … done.Just a pair of hands I am. Always struggling to let the image out. Always behind in my ability to execute on the paper what pours from ..."elsewhere", via my mind, my heart.It feels like, … really I have no personal connection to those pictures. I am not guilty.Don't ask me what they are, … what they mean. I don't know.Like orphaned kids, I collect them, feed them to grow.They have to be done. They have to get out there.If not me, … then who?Some are easy. Impatiently they bursting out into the openOthers play hide and seek. They leave a hint, they take me all over wrong paths, all around. They let me sweat, they let me freeze. They drag me through dry, dusty deserts, soak me in deepest seas. My shirt is bloody. My face is wet. Sometimes … sometimes I cry. Pure impossibility overwhelms me. Impossibility to make them happen as they appear to me. In their translucent light, through the tears, I see them, … I almost see them.No, I am no Artist. I just … I am just trying to do, … what I … almost … see.Yes, it's true! … I am making one picture over and over again.The same sofa, the same dress, the same image of Jesus on the wall in the background, as I have had throughout my childhood.Wings? … Yes, sometimes, there are wings. But those who carry them, they are no angels.They just want to be free. Pair of wings is like a passport to get away. To get to … elsewhere.E l s e w h e r e, … they say, it's not the destination, it's the journey, that counts.Therefore my little pictures are the humble documentation of that journey.They are the journey!Journey to … e l s e w h e r e!
 Reza
Iran/France
1952
A philanthropist, idealist, humanist, Reza's career began with studies in architecture. He has gone on to become a renowned photojournalist who, for the last three decades, has worked all over the world, notably for National Geographic. His assignments have taken him to over a hundred countries as a witness to humanity's conflicts and catastrophes. His work is featured in the international media (National Geographic, Time Magazine, Stern, Newsweek, El País, Paris Match, Geo...), as well as a series of books, exhibitions and documentaries made for the National Geographic Channel. Along with his work as a photographer, since 1983 Reza has been a volunteer committed to the training of youths and women from conflict-ridden societies in the language of images, to help them strive for a better world. In 2001, he founded Ainaworld in Afghanistan, a new generation NGO which trains populations in information and communications through the development of educational tools and adapted media. While pursuing his reportages for international media outlets, Reza has continued to conduct workshops on the language of images in a variety through his association Reza Visual Academy. He works with refugees, urban youths in Europe and others from disadvantaged backgrounds. After his work, Mémoires d'Exil ("Memories of Exile") shown at the Louvre Carrousel in 1998, he has shared his humanitarian vision through a series of monumental installations: Crossing Destinies, shown on the grilles of the Luxembourg Gardens in Paris, One World, One Tribe in Washington DC, and the Parc de la Villette in Paris, War + Peace at the Caen Memorial and on the banks of the Garonne in Toulouse, Hope in Doha (Qatar), Windows of the Soul in Corsica, Soul of Coffee, 250 photographic exhibitions throughout the world, including major installations on the banks of the Seine, or at Kew Gardens in London, Land of Tolerance at the UN Headquarters in New York, the European Parliament in Brussels, as well as UNESCO in Paris. In 2014, Azerbaijan: the Elegance of Fire, presented at the Petit Palais revealed a little-known people with an ancestral culture, turned towards modernity. Finally, the giant panorama A Dream of Humanity was featured along the banks of the Seine during the summer of 2015, showing portraits of refugees around the world taken by Reza and photographs taken by refugee children in Iraqi Kurdestan who were trained as "camp reporters" at the workshops organized by Reza Visual Academy. Author of thirty books, and a recipient of many awards over the course of his career, Reza is a Fellow and Explorer of the National Geographic Society, and a Senior Fellow of the Ashoka Foundation. His work has been recognized by World Press Photo; he has also received the Infinity Award from the International Center of Photography, the Lucy Award, an honorary medal from the University of Missouri and the honorary degree of Doctor Honoris Causa from the American University of Paris. France has also appointed him a Chevalier of the National Order of Merit.
Nanci Milton
United States
1957
Nanci Milton is a primarily self-taught photographic artist. Her experience with the camera, film and image making began at an early age with the gift f an Instamatic from her father for whom photography was his passion though not his profession. Subsequent Christmas gifts of cameras followed, as well as access to his own various cameras. She was smitten. As the only child of artistic parents, both teachers as well, she was continually exposed to writing, image making, art viewing and inquiring into the creative process. As an only child of older parents, she also was included in many adult events, dinners, lectures, visits with artists of many arenas and backgrounds and absorbed the many layers of inspiration and process they possessed. She found it a gift to be an only child as it allowed her the access to a larger world early on and also left her to her own devices to imagine and make without the comparison or competition with a sibling. Everything was available and potent. The ''legacy'' of artists can be heavy though, and even as she continued to make images and write, she struggled to find a form that was her own. That form led to a detour into the performing arts, modern dance and theater which were her university studies. Ultimately, these fell short of what she had been immured in all her life, and the turn back o the photographic arts and writing was undeniable. The detour however undeniably informs her work with a sense of narrative and staging, in addition to a conceptual approach that pushes the images beyond the static. In a world that is in such flux, Milton is attracted to empty, vacated or in some way, disrupted spaces and how our intimately personal or common and archetypal experience layer on and stain that space, be it exterior or interior; she finds a landscape of both body and mind to reveal. There is redemption in that effort and the rescuing of the lost, and in both the symmetry and the chaos found there. Methodology and materials are less important and she utilizes any and all that will support the idea. Milton has been included in domestic and international exhibits at Praxis gallery, LA Noble Gallery, A Smith Gallery, The 9th Annual Koblenzanalog portfolio and exhibit, and was an Honorable Mention in the Fine Art category for the 17th Julia Margaret Cameron Awards.
Advertisement
AAP Magazine #56 Shadows
Win a Solo Exhibition in April
AAP Magazine #56 Shadows

Latest Interviews

Exclusive Interview with Anastasia Samoylova
Anastasia Samoylova is an American artist whose photographic practice is shaped by close observation and a deep attentiveness to place. Working between documentary and formal exploration, she photographs landscapes, architecture, and everyday scenes with a sensitivity to light, structure, and atmosphere. Since relocating to Miami in 2016, her work has increasingly focused on how environments—both natural and built—carry social, cultural, and emotional traces. We asked her a few questions about her practice and her way of seeing, to better understand the thoughts and experiences that shape her work—while allowing the images themselves to remain open and speak in their own time.
Exclusive Interview with Marijn Fidder
Marijn Fidder is a Dutch documentary photographer whose work powerfully engages with current affairs and contemporary social issues. Driven by a deep sense of social justice, she uses photography to speak on behalf of the voiceless and to advocate for the rights of those who are most vulnerable. Her images have been widely published in major international outlets including National Geographic, CNN Style, NRC Handelsblad, Volkskrant, GUP New Talent, and ZEIT Magazin. Her long-term commitment to disability rights—particularly through years of work in Uganda—culminated in her acclaimed project Inclusive Nation, which earned her the title of Photographer of the Year 2025 at the All About Photo Awards. She is also the recipient of multiple prestigious honors, including awards from World Press Photo and the Global Peace Photo Award. We asked her a few questions about her life and work.
Exclusive Interview with Josh S. Rose
Josh S. Rose is a multidisciplinary artist working across photography, film, and writing. His practice bridges visual and performing arts, with a strong focus on movement, emotion, and the expressive potential of the image. Known for his long-standing collaborations with leading dance companies and performers, Rose brings together authenticity and precise composition—a balance he describes as “technical romanticism.” His work has been commissioned and exhibited internationally, appearing in outlets such as Vogue, at the Super Bowl, in film festivals, and most recently as a large-scale installation for Lincoln Center for the Performing Arts. A sought-after collaborator, he has worked with major artists, cultural institutions, and brands, following a previous career as Chief Creative Officer at Interpublic Group and the founder of Humans Are Social. We asked him a few questions about his life and work.
Interview with Maureen Ruddy Burkhart
Photographer Maureen Ruddy Burkhart brings a quietly attentive and deeply human sensibility to her exploration of the world through images. Shaped by a life immersed in photography, film, and visual storytelling, her work is guided by intuition, observation, and an enduring interest in the emotional undercurrents of everyday life. With a practice rooted in both fine art traditions and documentary awareness, she approaches her subjects with sensitivity, allowing subtle moments to emerge naturally rather than be imposed. Her series Til Death, selected as the Solo Exhibition for February 2025, reflects this long-standing commitment to photography as a space for reflection rather than spectacle. Drawn to moments that exist just outside the expected frame, Burkhart’s images suggest narratives without resolving them, leaving room for ambiguity, humor, and quiet connection. We asked her a few questions about her life and work.
Exclusive Interview with Peter Ydeen
Winner of AAP Magazine #45 Travels, his series reflects this unique vision—capturing the spirit of place through subtle layers of light, color, and emotion. Whether traveling abroad or observing the rhythms of his own surroundings, Ydeen creates images that feel both grounded and enchanted, inviting viewers into a world where reality and reverie meet.
Exclusive Interview with Julie Wang
Chinese-born photographer Julie Wang brings a poetic, contemplative sensitivity to her visual exploration of the world. Having lived for nearly equal parts of her life in China, Europe, and the United States, she approaches her subjects with the nuanced perspective of someone shaped by many cultures. This blend of distance, curiosity, and emotional resonance infuses her work with a quiet depth, allowing her to reveal the fragile beauty and subtle tensions that often pass unnoticed.
Exclusive Interview with Ghawam Kouchaki
American photographer Ghawam Kouchaki brings a sharply observant and introspective gaze to the streets of Japan’s capital. Based in Los Angeles, he approaches Tokyo with the distance — and curiosity — of an outsider, allowing him to uncover the city’s subtle contradictions, quiet tensions, and fleeting gestures that often go unnoticed. His series Tokyo no no, selected as the Solo Exhibition for December 2024, explores the hidden undercurrents of urban life: the unspoken rules, the small ruptures in routine, the poetic strangeness found in everyday moments. Through muted tones, instinctive timing, and meticulous framing, Kouchaki reveals a Tokyo that exists somewhere between reality and imagination — both intimate and enigmatic. We asked him a few questions about his life and work.
Exclusive Interview with Tommi Viitala
Tommi Viitala, winner of AAP Magazine #44: Street, is a Finnish photographer celebrated for his striking and cinematic street photography. With a keen eye for atmosphere and composition, he captures fleeting urban moments that reveal the poetry of everyday life. His work often explores the tension between solitude and connection within contemporary cityscapes, blending documentary realism with artistic sensibility. Viitala’s photographs have been exhibited internationally and recognized for their strong visual storytelling and emotional depth. We asked him a few questions about his life and work.
Exclusive Interview with Robert Mack
Robert Mack is a California-based visual artist, photographer, and filmmaker. His fine art photography and films have been exhibited widely in the United States and Europe, with major shows at the Baltimore Museum of Art and the Reiss-Engelhorn Museum in Mannheim, Germany. Both institutions hold his work in their permanent collections. Working across different media, Mack has built a career exploring the complexities of human presence and representation. In 1981, while living in Baltimore, he produced The Perkins Project: Not Guilty by Reason of Insanity, a rare photographic and film study inside Maryland’s hospital for the criminally insane. These stark yet compassionate black-and-white portraits remain one of his most powerful and controversial bodies of work.
Call for Entries
Solo Exhibition April 2026
Get International Exposure and Connect with Industry Insiders