The collection includes manuscripts and/or typescripts of most of Greenwood's published and unpublished works, working notes, plot outlines, proof copies (with corrections and amendments), and published editions. There is also correspondence from the 1930's to the 1970's (mainly relating to his work), photographs and a substantial body of press cuttings and reviews, interviews, and articles by or about Greenwood. The collection also includes material relating to theatre and film productions based on Greenwood's work, as well as personal items which belonged to the author. Some of the numerous significant figures represented in the archive include Robert Donat, Thora Hird, Norman Wisdom and Edith Sitwell.
The collection has been arranged into seven series: i/Manuscripts and typescripts; ii/Correspondence; iii/Newspaper cuttings; iv/Photographs; v/Theatre programmes, playbills and other related materials; vi/Published editions of Greenwood's works; vii/Additional material collected by the University.