The Archives is composed of those items produced by the University as part of its operations in fulfilling its educational mission. It includes business papers, legal documents, official and unofficial (including student) publications, departmental papers, newsletters, presidential papers, speeches, theses, brochures, posters, programs, etc. The items come in various formats such as handwritten documents, books or other printed materials, videos, sound recordings, microforms, art, photographs, ephemera. There are also some things from other sources about or relating to the University which are not technically archival documents.
Many of the published items in the Archives have been catalogued and appear on the Library Catalogue, with "Truman Archives" as the location. Additional copies of some publications may also be found in other collections throughout the Library.