Manuscripts, correspondence, notebooks, publications, and ephemera. The majority of the papers is related to the publication process of Gifford's many books, and spans the period 1970 to the present. The largest subseries is composed of manuscript material, including correspondence with publishers and editors, typewritten and handwritten drafts of books, and research materials. As well, there are fifteen boxes of Gifford's notebooks, which contain partial drafts of books as well as individual poems, journal entries, and memoranda. There is also a significant file of correspondence, notable primarily for the six boxes of letters Gifford wrote to his longtime friend and associate, bookseller Marshall Clements. Finally, the collection contains approximately one hundred first editions of Gifford's own books, as well as copies of other books he used in his research.