The collection contains 423 indexed images and approximately 350 additional, un-indexed snapshots. The images include publicity shots, professional photographs and snapshots of Mikhashoff in rehearsal and performance, and snapshots from some of Mikhashoff's travels. Other people included in the images include noteworthy performers and composers, such as Aaron Copland, Virgil Thomson, Sylvano Bussotti, Henri Dutilleux, Giacinto Scelsi, Toru Takemitsu, Frederic Rzewski, Luis de Pablo, Henry Brant, John Cage, Milton Babbitt, Conlon Nancarrow, Nils Vigeland, and Poul Ruders.