The Jean Jonassaint Art and Object Books Collection spans 1958-2025 and contains art and artist material that Jean Jonassaint has collected over the span of his life. The collection is divided into several categories, differentiated by the type of material. The majority of this material is in French, English, and Portuguese, with portions also in Italian and Spanish.

Art Books consist of books about art, primarily not in English. Many books are from Quebec, France, and Brazil. These books include exhibition catalogs and accompanying material, as well as books about specific artists. Also included are books about the Venice Biennale, an annual exhibition of international art and culture.

Artists' books contains books made by various artists that use the format of the book itself as an artform. Jonassaint's own artist book creations are included, as well as works by others. Many come from Quebec or Belgium, while many others have an unknown origin. Several are made with fragile or organic material.

Correspondence contains correspondence between Jonassaint and various people. Several items of correspondence are pamphlets or bulletins about various performances or artistic institutions sent to Jonassaint.

Poetry contains books and pamphlets containing poetry, with a particular focus on concrete poetry, a type of poetry in which the visual arrangement of text and space is used as an element of the poetry to convey meaning.

Subject files consists of one folder of material about Italian artist Graziella Borghesi. Examples of her work may be found in the Artists' Books series above,

Miscellaneous contains assorted printed items (pamphlets, zines, postcards, advertisements, etc.), a few items which may or may not be artist's books, three audiocassettes, and a DVD.