This collection contains manuscripts, correspondence, books, magazines, and other material related to Lansdale's writing career, circa 1989-2003.

This collection consists almost entirely of correspondence from Ray Bradbury regarding submissions and publishing during Bradbury's early career, 1939-1950s. Most of the letters were written to Erle Korshak, founder of Shasta Publishers, but some of the correspondence is both to and from Ted Dikty, Shasta's managing editor and a well-known SF anthologist.

There are a few later pieces of correspondence, dating from the 1980s.

This collection (also known as the Moorcock Life Collection) consists of a wide variety of materials, including manuscripts, proofs, and notes for a large number of Moorcock's works; convention materials; assorted periodicals, newsletters, and other publications; photographs; and many other items. This collection covers the range of Moorcock's literary and artistic career.

This collection consists of materials relating to the 1956 A. E. Van Vogt novel Empire of the Atom, including the original typescript, galleys, and correspondence related to the book's publication and review.

This small collection consists of one letter from Dunsany to Min Winwar, May 1, 1953, in which he comments favorably on her new book.

This collection includes an assortment of manuscripts and correspondence of Isaac Asimov, including short stories, novels, non-fiction, and correspondence with publishers. The segment on the submission of "Stay, Oh Fleeting Moment," a nonfiction piece on time and the subsequent correspondence, internal documentation of Playboy editors and readers, and the rejection of the article providing an informative look at the working of a major magazine.

This collection contains notes, checklists, copies of Otto Binder letters, and edited drafts of Bill Schelly’s Words of Wonder: The Life and Times of Otto Binder (2003).

This collection consists of a small assemblage of Andre Norton's later manuscripts, her review compilations, her portrait, science fiction artworks, and related material.

This collection consists of manuscripts for several works of fiction by Utley, including the novella Custer's Last Jump (1976, with Howard Waldrop) and the short-story anthology Ghost Seas and Other Vistas (1997).

This collection consists of Oliver's manuscripts, notes, and correspondence, published books, magazine appearances, books collecting his stories, foreign-language editions, clippings, and other related material. Chronologically, the collection ranges from the mid-1950s through the mid-1990s.

The Sam Moskowitz collection consists of his research files, correspondence, manuscripts, many of his books, and working documents related to his study of the history of science fiction and fantasy.  Drafts of two unpublished books are included.

The collection contains a wide variety of material related to Star Trek, including books, records, calendars and realia such as pins, playing cards, music boxes, pictures, magazines covering Star Trek, apparel, cups, and glasses, models, ornaments, and other collectibles.

Approximately 102 books have been integrated into the Science Fiction and Fantasy Research Collection. Each book added has a note "Sharon Faye Wilbur Star Trek Collection."

An additional series contains reference material relating to the author Andre Norton, with whom Wilbur was acquainted. Works by Norton that Wilbur owned have been integrated into the Science Fiction and Fantasy Research Collection.

This collection consists of numerous manuscripts and related materials - including outlines, notes, and proofs - of works by noted science fiction author Robert Silverberg.

This collection contains correspondence regarding Anderson’s writing and travel plans, 1951-1954, and manuscripts and galley proofs of "Ivory, and Apes, and Peacocks", The Devil’s Game, and Orion Shall Rise (1980-1983).

This collection consists of two typed manuscripts (with corrections) of Philip Jose Farmer, including his Hugo Award-winning novella Riders of the Purple Wage (1967) with a signed cover letter to Harlan Ellison and Larry Ashmead and which was originally published in Harlan Ellison's groundbreaking anthology Dangerous Visions.
The manuscript "Sketches Among The Ruins of My Mind" (1973) signed by Farmer in August 1986, is accompanied by a 1972 letter from Harry Harrison containing suggested edits to Farmer's story.

This is a small collection of correspondence, art, and a manuscript fragment by "Stewart", from Siros. The correspondence consists mostly of convention-related business and other topics and contains letters to Siros from, among others, Philip Jose Farmer, Jack Williamson, and John Clute.

A collection of letters to and from Robert E. Howard, from circa 1920-1936, with miscellaneous Howard items, copies of magazines featuring Howard stories, and books containing Howard stories and novels. Also included are a number of items relating to films based on Howard's works.

The Arkham House Collection consists of correspondence from August Derleth to Howard Wandrei. Derleth, a writer, founded Arkham House to publish and keep in print the work of Howard Phillips Lovecraft, a friend and fellow writer. Lovecraft died in 1937; for the next two years Derleth tried unsuccessfully to find a publisher for Lovecraft's writings. Using money from prepaid orders and the personal investment of Donald Wandrei (brother of Howard Wandrei), Derleth founded Arkham House in 1939. Arkham House published science fiction works by Lovecraft and other writers such as Algernon Blair, Clark Ashton Smith and Henry S. Whitehead.

In his letters to fellow science-fiction writer Howard Wandrei, August Derleth writes about his publishing efforts at Arkham House, his own writing career and the details of his personal life. His letters also mention other authors and publishing houses. The letters date from 1930-1953; most letters are accompanied by the original stamped envelopes.

The collection spans Bill Crider's entire career. A near-complete run of manuscripts traces his writing career, supplemented by a correspondence file, miscellaneous material, and books and magazines. A long run of "DAPA-EM," the organ of a mystery writer's amateur press association completes the collection.

This collection contains manuscripts, printed material, correspondence, legal documents, financial documents, idea books, photographic material, and books created and/or maintained by Howard Waldrop which give a glimpse of his personal life as well as document his professional life as one of the prolific and best-known science fiction writers from Texas.

The first category consists of Howard Waldrop's works both published and unpublished arranged alphabetically by title. Some manuscript files in this category may contain correspondence, notes, research material, contracts, royalty statements, proofs, etc. Thus, information about a specific story can be found in the collection by title.

The second category consists of materials related to Waldrop personally and/or professionally. This category is arranged alphabetically by general topical heading. His idea for some of his stories can be found in his Idea Books file from 1968 to 1988. Information about him personally or professionally can be found in the newspaper clippings, correspondence, and his work diaries files. His movements for any given year from the 1970s to 1994 could be reconstructed from his science fiction convention, conferences, programs, etc. file. But the most important file in this category is his story logs file 1970-1989. The file shows: when and where a story was written, how long it is; who bought it or did not; when and where it was published (or supposed to be published); and any subsequent reprints or foreign editions, royalties, etc.

The last category of the collection is works by or materials related to other science fiction writers. It includes manuscripts of other writers' works that happened to be in his possession or other writers' manuscripts in which he is a collaborator. Some biographical sketches of other writers can be found in the Con Bios-writers file. Information about Waldrop written by other writers can also be found in this category of the collection.

The Lisa Tuttle Collection consists of books, manuscripts, galley proofs, and magazines tracing the storied career of science fiction, horror and fantasy writer Tuttle.  The collection is a work-in-progress, with additions from the author as they become available.

This collection includes manuscripts, papers, and publications from throughout Mayhar's career, but the bulk of the material dates from the late 1980s to the present.

This collection contains over 100 letters and postcards, most written by science fiction fan writers and editors regarding amateur writing and publishing, largely related to Psychotic (later Science Fiction Review), a fanzine published by Richard E. Geis from July 1953 to October/November 1955.

The correspondence includes letters from influential science fiction fans and fanzine editors of the period: Terry Carr (6 letters, 1 postcard), Harlan Ellison (2 letters, 1 postcard), Marion Zimmer Bradley (1 letter), Robert Silverberg (2 letters, 1 postcard), Ron Smith (editor of Inside, one of the more important fanzines of the 1950s) and others, as well as a letter from pro editor Samuel Mines (accompanied by drafts and carbon copies of fan letters from Geis to Mines critiquing material published in Startling Stories), and a typed letter on FBI letterhead from J. Edgar Hoover.

This collection consists of manuscript drafts, copyedited manuscripts, and galley proofs of all of Martha Wells' novels, as well as a number of other materials that include program books from many science fiction and fantasy conventions.

The March 2017 Addendum contains mostly media-related materials, particularly from the television show _Hercules: The Legendary Journeys_and the _Star Wars_films.