Fonds consists of the business records of The Isaacs Gallery (TIG), the Inuit Gallery and the Isaacs/Inuit Gallery which include personal and professional correspondence, exhibition catalogues, mailings, financial records, and artist files consisting of correspondence, biographical sketches, press clippings, and other material relating to artists represented by Isaacs such as Dennis Burton, Graham Coughtry, William Kurelek, Michael Snow and Joyce Wieland, Robert Markle, Greg Curnoe, Gordon Rayner and John Ivor Smith, among others. It also includes artist portfolio files consisting of press clippings and catalogues of their works, a comprehensive slide collection documenting an overview of his gallery exhibits, and promotional files relating to his galleries. The fonds includes Isaacs' poster collection as well as notes written by Isaacs, collected correspondence and reminiscences, drafts, mock-ups and other material related to the writing and creation of the artist's scrapbook 'Isaacs seen.'