• Artists' Books (SPEC AB)
• Arizona Governor George W. P. Hunt's Personal Library (SPEC HU)
• Beat Generation (SPEC BE)
• Book Arts (SPEC BA)
• Dance Education (SPEC NL), Paula Nelson Collection
• Early Gardening and Herbal Collection (SPEC PAT), Patten Collection
• Film Books (SPEC STRR), Jimmy Starr and Nick Salerno Collections
• Incunabula (SPEC INCUN), early printing (prior to 1500 CE)
• IsraPulp (Israeli Popular Literature) Collection
• Jewish Yitzkor Books (SPEC JYB)
• Laos (SPEC SES), William W. Sage Collection
• Vaudeville Wit and Humor Books (SPEC JM), Joe E. Marks Collection
• Performing Arts Biographies (SPEC EEL), George Eells Collection
• Performing Arts Books (SPEC BL), Gene Blakely Collection
• Pop-Up Books (SPEC VAL), Eugene D. Valentine Collection
• Pre-Raphaelite Brotherhood (SPEC PRB)
• Printing and Publishing
• Science Fiction (SPEC SF)
• Science Fiction Periodicals (SPEC SFS)
• Young Adult Fiction (SPEC DO), Kenneth L. Donelson Collection

Books By and About Authors

• Burroughs, William Seward (SPEC BU)
• Eells, George (SPEC EEL)
• Emerson, Ralph Waldo (SPEC EM)
• Foster, Alan Dean (SPEC FO)
• Galsworthy, John (SPEC GA)
• Hearn, Lafcadio (SPEC HE)
• Meredith, George (SPEC ME)
• Moore, George (SPEC MO)
• Moore, Marianne (SPEC MR)
• Morgan, Ted (SPEC MOR)
• Nathan, Robert (SPEC NA)
• Riley, James Whitcome (SPEC RL)
• Schwarz, Ted (SPEC SCH)
• Swarthout, Glendon (SPEC SW)
• Trevor, Elleston (SPEC TR)
• Wells, H. G. (SPEC WE)

Some authors such as William Seward Burroughs and the Alan Dean Foster also have manuscript collections.