Diane Arbus was an American photographer and writer noted for black-and-white square photographs of “deviant and marginal people or of people whose normality seems ugly or surreal”.

Working with her husband, Diane Arbus started out in advertising and fashion photography. She and Allan became quite a successful team, with photographs appearing in such magazines as Vogue. In the late 1950’s, she began to focus on her own photography. To further her art, Arbus studied with photographer Lisette Model around this time.
During her wanderings around New York City, Arbus began to pursue taking photographs of people she found. She visited seedy hotels, public parks, a morgue and other various locales. These unusual images had a raw quality, and several of them found their way into the July 1960 issue of Esquire magazine. These photographs proved to be a spring board for future work.
By the mid-1960s, Diane Arbus had become a well-established photographer, participating in shows at the Museum of Modern Art in New York City, among other places. She was known for going to great lengths to get the shots she wanted.
While professionally continuing to thrive in the late 1960’s, Arbus had some personal challenges. Her marriage to Allan Arbus ended in 1969, and she later struggled with depression. She committed suicide in her New York City apartment on July 26, 1971. Her work remains a subject of intense interest, and her life was the basis of the 2006 film Fur, starring Nicole Kidman as Arbus.
Source: Biography.com