Books

Mammoth Mammoth
2020
Titan Titan
1979
Red Thunder Red Thunder
2020
Wizard Wizard
1980
The Ophiuchi Hotline The Ophiuchi Hotline
1993
Demon Demon
1984

Audiobooks

Titan: Gaean Trilogy, Book 1 (Unabridged) Titan: Gaean Trilogy, Book 1 (Unabridged)
2008
Wizard: Gaean Trilogy, Book 2 (Unabridged) Wizard: Gaean Trilogy, Book 2 (Unabridged)
2008
Demon: Gaean Trilogy, Book 3 (Unabridged) Demon: Gaean Trilogy, Book 3 (Unabridged)
2008
The Ophiuchi Hotline  (Unabridged) The Ophiuchi Hotline  (Unabridged)
2008
More of the Best of Science Fiction and Fantasy (Unabridged) More of the Best of Science Fiction and Fantasy (Unabridged)
1999
The Persistence of Vision  (Unabridged) The Persistence of Vision  (Unabridged)
2008