The Colin de Land collection measures 15.15 linear feet and 0.901 GB and dates from 1968 to 2008, with the bulk of the collection dating from the early 1980s through 2003. The majority of the collection consists of photographic material, primarily snapshots, documenting daily life in and around de Land's gallery American Fine Arts, Co., as well as de Land's pesonal life and affairs. There are candid photographs of exhibition openings, day-to-day gallery operations, art fairs, vacations, social gatherings, and New York City street scenes. Also included are some personal objects belonging to de Land and his wife Pat Hearn, as well as two scrapbooks containing items once decorating the walls of de Land's office at American Fine Arts. The collection includes video recordings documenting trips to Cape Cod, Hearn's illness, and occasional art world events.

The papers of painter, printmaker, and educator Will Barnet date from 1897 and 1929-2016. The collection measures 30.7 linear feet and 7.24 gigabytes. Found within the papers are biographical material, including numerous recorded interviews of Barnet; personal and professional correspondence; writings and lectures; financial records; printed material; artwork; and photographs of Barnet, his family and friends, and his work. An addition received in 2016 includes biographical material, correspondence, writings, diaries and daybooks, gallery and exhibition files, project and professional files, printed material, and photographic material.

The papers of Dore Ashton measure 35.6 linear feet and date from circa 1928-2014, with one letter in the Joseph Cornell subject file dating from 1849. The records document Dore Ashton's career as an art critic, historian and educator, with particular depth for the period of 1952 through 1990. The collection contains a small amount of biographical material, as well as correspondence, writings, subject files, printed materials, artwork, and reference photographs of artworks. An addition to the Dore Ashton papers includes biographical material, correspondence, writings, writing project and subject files, teaching files, printed material, artwork and sketchbooks, and photographic material.

The papers of American sculptor Stephen Antonakos measure 24.2 linear feet and 1.73 GB and date from 1932-2014, with the bulk of the material dating from 1960-2014. The collection documents Antonakos's pioneering work in neon, through biographical material, correspondence, writings and notes, project files, exhibition files, printed and digital material, and photographs.

The Leo Castelli Gallery records measure 215.9 linear feet and 0.001 GB and date from circa 1880-2000, with the bulk of the materials dating from the gallery's founding in 1957 through Leo Castelli's death in 1999. The major influence of dealer Leo Castelli and his gallery on the development of mid-to-late twentieth century modern art in America is well-documented through business and scattered personal correspondence, administrative files, exhibition files, extensive artists' files and printed materials, posters, awards and recognitions, photographs, and sound and video recordings. Also included are records for the subsidiary firms of Castelli Graphics and Castelli/Sonnabend Tapes and Films.

The records of the Frances Wolfson Art Gallery measure 5 linear feet and date from 1973 to 1994. The Gallery was established in 1976 on the Mitchell Wolfson New World Center Campus of the Miami-Dade Community College. It focused on the art of the local Latino community in addition to serving the needs of the College's arts and humanities students. Materials document exhibitions held at the Gallery and the general administration of the Gallery through correspondence, business records and printed material.

The papers of painter, writer, and dancer George Deem measure 18.2 linear feet and 10.71 GB and date from 1904-2015, with the bulk of the material dating from 1960-2008. The collection documents Deem's path from Midwestern farm child to New York City artist and teacher who specialized in recreating works of great masters, especially Johannes Vermeer. Correspondence, exhibition files, subject files, project files, writings by and about Deem, printed and digital material and photographic materials all show the trajectory of Deem's development as an artist.

The Ivan C. Karp papers and OK Harris Works of Art gallery records measure 80.3 linear feet and are dated 1960-2014. The collection documents the operation and activities of the contemporary art gallery founded by Ivan C. Karp in the SoHo area of Manhattan. Exhibition files, artist files, printed material and photographic materials reveal the wide range of artists represented by OK Harris and the gallery's role in introducing Photo-realism to the public. Aso included are administrative files, prints by OK Harris artists, business and personal correspondence, 39 journals by Karp spanning a period of 62 years, and other personal papers. Material pre-dating the 1969 establishment of OK Harris Works of Art consists of printed items and a few letters.

The papers of New York City photographer, conceptual artist, and musical composer Cosmos Sarchiapone measure 49.2 linear feet and 0.367 GB and date from circa 1860-2011, with the bulk of the materials dating from 1940-2011. The collection includes biographical material and personal business records; correspondence; extensive writings, including written and recorded music compositions; teaching files; printed material and published sound and video recordings; photographic material; artwork; artifacts; and unpublished sound recordings and born-digital material. Highlights of the collection are more than 40,000 photographic images documenting New York's avant-garde art scene of the 1970s, along with celebrity parties, concerts, exhibition openings and other occasions in the art, music, and theater world. Extensive and somewhat rare printed materials offer users a visual chronical of the downtown art world in the form of posters from the 1970s, including a number of Milton Glaser's, and hundreds of exhibition announcements, theater programs, and playbills.

The records of the Richard York Gallery, a New York gallery specializing in American art from early 1800s to 1950, measure 87.5 linear feet and date from circa 1865-2005, with the bulk of the material dating from 1981 to 2004. The collection contains artists' artwork files, documenting the sale and consignment of nearly 6,500 works of art. The gallery's activities are also recorded through correspondence, artists' files, client files, gallery invoices, inventories, business and financial records, printed materials, scrapbooks, photographic materials of artwork, and estate records for the John Marin estate and Sergio Stella estate (Joseph Stella).