The collection is arranged in the following series and subseries:
Series I: H. G. Wells Correspondence
Series II: Visual Materials
Series III: Things to Come Production and Advertising Materials
Series IV: Publishers' Correspondence, Contracts, and Financial Records
 Subseries I: Marjorie Wells, 1901-1947
 Subseries II: Publishers' Correspondence (1), 1901-1941
 Subseries III: Publishers' Correspondence (2), 1922-1934
 Subseries IV: Duffield & Company (1), 1907-1934
 Subseries V: Duffield & Company (2), 1924-1931
 Subseries VI: Publishers' Correspondence and Ephemera, 1918-1941
 Subseries VII: Paget Literary Agency, 1919-1922
 Subseries VIII: Tono-Bungay (1), 1928-1965
 Subseries IX: Tono-Bungay (2), 1934-1960
 Subseries X: Seven Famous Novels, 1934
 Subseries XI: Dodd, Mead & Company (1), 1934
 Subseries XII: Dodd, Mead & Company (2), 1934-1939
 Subseries XIII: Collins' edition of Tono-Bungay and Marriage, 1947
 Subseries XIV: The Island of Dr. Moreau, 1950-1951
Series V: Books, 1897-1943
The H. G. Wells Correspondence is arranged alphabetically by correspondents' surnames, with items addressed to unknown recipients placed at the end. Each subseries in the Publishers' Correspondence, Contracts, and Financial Records series is arranged chronologically, with undated items placed at the end; original groups are maintained. The Books, housed separately, are individually cataloged.