The following list includes only adult novels written by Julian May. In addition to the books listed here, she published more than one hundred juvenile non-fiction books and two short stories; see the main article for details. Details listed here are only for the United States first edition; later editions and Commonwealth editions appeared in different forms and titles.

The Saga of Pliocene Exile

• The Many-Colored Land (Boston: Houghton Mifflin, 1981). ISBN 0-395-30230-7.
• The Golden Torc (Boston: Houghton Mifflin, 1982). ISBN 0-395-31261-2.
• The Nonborn King (Boston: Houghton Mifflin, 1983). ISBN 0-395-32211-1.
• The Adversary (Boston: Houghton Mifflin, 1984). ISBN 0-395-34410-7.

Galactic Milieu

• Intervention: A Root Tale to the Galactic Milieu and a Vinculum between it and The Saga of Pliocene Exile (Boston: Houghton Mifflin, 1987). ISBN 0-395-43782-2.
  • Intervention has also been released as two novels: Surveillance and Metaconcert
• Jack the Bodiless (New York: Knopf, 1991). ISBN 0-679-40950-5.
• Diamond Mask (New York: Knopf, 1994). ISBN 0-679-43310-4.
• Magnificat (New York: Knopf, 1996). ISBN 0-679-44177-8.

Trillium

The Trillium series began as a three-way collaboration. After the first book, the three authors each continued the series on their own.

• Marion Zimmer Bradley, Julian May, and Andre Norton, Black Trillium (New York: Doubleday , 1990). ISBN 0-385-26185-3.
• Blood Trillium (New York: Bantam , 1992). ISBN 0-553-08851-3.
• Sky Trillium (New York: Del Rey , 1997). ISBN 0-345-38000-2.

The Rampart Worlds

• Perseus Spur (New York: Ballantine, 1999). ISBN 0-345-39510-7. (First published 1998 in UK.)
• Orion Arm (New York: Ballantine, 1999). ISBN 0-345-39519-0.
• Sagittarius Whorl: An Adventure of the Rampart Worlds (New York: Ballantine, 2001). ISBN 0-345-39518-2.

Boreal Moon

• Conqueror's Moon (New York: Ace, 2004). ISBN 0-441-01132-2.
• Ironcrown Moon (New York: Ace, 2005). ISBN 0-441-01244-2

References

• A Pliocene Companion (Boston: Houghton Mifflin, 1984). ISBN 0-395-36516-3.
• The Work of Julian May: An Annotated Bibliography and Guide (n.p.: Borgo Press , 1985). ISBN 0-89370-482-2. (Not consulted for this article.)
• Library of Congress Online Catalog
• The Locus Index to Science Fiction