A rich collection of graphic design prints, transparencies, sketches, mock-ups, and maquettes, as well as promotional materials (pamphlets, flyers, leaflets, brochures, advertisements) created by Erwin G. Harris and his design firm. Included within are commercial advertising materials for hotels, restaurants, and tourist attractions in Florida, other parts of the United States, Latin America, and the Caribbean; wines and spirits; and other companies, such as IGENE Biotechnology, Scopitone, and Mastro Plastics.

The collection also includes correspondence to and from Erwin G. Harris, photographs, advertisement proposals, resumes, biographies, portfolios and other documents pertaining to Harris and Company Advertising, and Inc. and Erwin G. Harris’ other businesses, along with legal documents, correspondence, and news clipping detailing Harris' feud with the Cuban government under Fidel Castro during the early 1960s.

This collection features an array of scrapbooks, many of which are homemade, from the 19th and 20th centuries. Subjects covered in these scrapbooks include fashion, advertising, history, Robert Louis Stevenson, Pat Cannon's congressional run, garden clubs, cruises, and more. These scrapbooks are comprised of portraits, photographs, postcards, newspaper clippings, programs, brochures, maps, drawings, telegrams, and more. Some of the creators are unknowns or names without renown, but these scrapbooks highlight their personal tastes and interests, offering some unique insight into their lives.