Ann Rosen graduated from SUNY at Buffalo with a BFA and the Visual Studies Workshop with an MFA, studying with Nathan Lyons, Joan Lyons and John Wood. She studied printmaking, photography and alternative photographic processes.
She has received residencies to Artpark, NY and Virginia Center for the Creative Arts, VA, as well as a residency at the Henry Street Settlement, NYC.  In 2004, Rosen received a grant from the Brooklyn Arts Council to develop her project, In the Presence of Family and, in 2010, received an additional one to continue this project, creating a historic document of the families. She has published several books in connection with this project, In the Presence of Family: Brooklyn Portraits, 2009, and Revisiting in the Presence of Family: Brooklyn Portraits, 2018.  In 2016, she received a grant from the Puffin Foundation to expand her work teaching digital photography to women in living in shelter.
Exhibitions include Brooklyn Museum of Art, Appropriation & Syntax: The Use of Photography in Contemporary Art; Museum of the City of New York, New York Gets Married; Henry Street Settlement, In-Sites VI: Making Our City Livable; Five Myles Gallery, In the Presence of Women: Living in Shelter; CIIS, San Francisco, What Keeps You Up at Night?. Solo exhibitions include Franklin Furnace, NYC, Unlike in Characters; NYC Public Library, Grand Army Plaza, In the Presence of Family: Brooklyn Portraits; Webster University, In the Presence of Family: Brooklyn Portraits; LIU, Resnick Gallery, In the Presence of Family: Brooklyn Portraits, and Farleigh Dickenson University, Portraits: Artists and their Families; Burchfield-Penney Art Center, 50 in 50.
Her work has been written about in the Village Voice; NY Times; Newark Sunday Star Ledger; Brooklyn Courier; Brooklyn Eagle; and the Pfizer Journal. Her portraits were featured in the 11th Annual Brooklyn Pride Magazine. 

Both her photographs and books are represented in numerous permanent collections including the Brooklyn Museum of Art, NY; the Museum of Modern Art Library, NYC; the Albright-Knox Gallery and Library, Buffalo, NY; Burchfield-Penney Art Center, Buffalo, NY. and the permanent collection of the Brooklyn Public Library, Grand Army Plaza.