A range of additional books, both nonfiction and fiction, draw on the Zodiac Killer case. Documented examples include:
- Robert Colby, “Horror-Scope for Murder (The Zodiac Killer)” in The California Crime Book (1971).
- Duffy Jennings, “This is the Zodiac Speaking…” in Great Crimes of San Francisco (1974).
- James Purvis, “Zodiac—The Sign of Death” in Great Unsolved Mysteries (1978).
- Jerry Weissman, The Zodiac Killer (1979).
- Georgina Lloyd, “The Zodiac Killer” in One Was Not Enough (1986).
- T. Winter-Damon & Randy Chandler, Duet for the Devil (2000), a horror novel.
- Joseph Covino Jr., San Francisco’s Finest: Gunning for the Zodiac (2012).
- Terry Cubbins, The Stringer (2016).
- Claus Holm, Tempus Investigations – Season Three (2020), in which the main character confronts and kills a Zodiac figure.
These works variously fictionalize or document the case; their identity claims, where present, belong to their authors.