118 books • 11 series
The Astral Mirror
Workshops in Space
Exiles Trilogy
Escape Plus
Test of Fire
The Winds of Altair
Voyagers I
Vision of Future
The Science Fiction Hall of Fame, Volume Iib
As on a Darkling Plain
The Starcrossed
Kinsman (Orbit Books)
Colony
Millennium
The Multiple Man
Closeup: New Worlds
End of Exile (Exiles Series, #3)
Star Watchman
New Astronomies
Duelling Machine
The Dueling Machine
The Weathermakers