Consists of publisher's files of notable British socialist authors of the 20th century. Files primarily include correspondence and publication agreements with some ephemera (e.g. dust jackets, newspaper clippings). Much of the correspondence regards copyright and use permissions, with some content regarding sales, microfilming, and editorial notes.

Consists of Florovsky's writings, in the form of typescript and manuscript drafts of his articles and reviews, and related research materials, in the form of notes, bibliographies, and bibliographical card files.

Consists of research material, notes, outlines, drafts, galleys, and proofs. Yellow legal notepads contain notes, early draft material, and inserts for later typed and printed versions. Notepads are identified by their first lines, though a single notepad may contain a variety of material, including material relating to other works, correspondence drafts, and other unrelated notes. Corrected typescript and printout drafts often show significant revisions. Material from various stages of the publication process is present, including setting copies with copy-editor's and typesetter's marks, galleys, page proofs, F (folded-and-gathered pages, in signatures but not yet bound), blueline proofs ("confirmation blues"), advance copies (bound uncorrected proofs, pre-publication, often used for book reviewers) and production/design material with page and dust-jacket samples. Page numbers are noted for paginated material.