Frank was best known for his book, 'The Americans,' which was released in the U.S. in 1959. The book, which contains 83 snapshots, was once described as "the chasm between the American dream and the everyday reality." Novelist and poet Jack Kerouac wrote the book's introduction. Kerouac said that Frank had "sucked a sad poem out of America" with his photographs. The Swedish-born photographer went on to make a name for himself as a filmmaker in the 60s and 70s. He was called "one of the most important and influential American independent filmmakers of the last half-century" by film critic Manohla Dargis. His two children, Andrea and Pablo, precede him in death. He is survived by his wife, artist June Leaf.