Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Bartolomé de las Casas
F. L. Wallace
John J. McGuire and H. Beam Piper
E. E. Smith
Carey Rockwell
Stephen Marlowe
Mack Reynolds
H. Beam Piper
Philip K. Dick
Frank Belknap Long
Richard McKenna
Andre Norton
Frederik Pohl and C. M. Kornbluth
Allen Kim Lang
Katherine MacLean
Winston K. Marks
Algis Budrys
Murray Leinster
Roger D. Aycock
Charles L. Fontenay
Keith Laumer
Leigh Brackett
These books are free to read. Each is in the public domain in the United States; check your own country's rules before you copy or share one.