Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Karel Čapek
Philip K. Dick
Isaac Asimov
F. L. Wallace
Charles Hannan
Edward Sylvester Ellis
Randall Garrett
Harry Harrison
E. E. Smith
V. E. Thiessen
Fritz Leiber
Ivar Jorgensen
David C. Knight
Robert Sheckley
Reuben Merliss
Bryce Walton
Stephen Marlowe
Mari Wolf
Conrad William Cooke
William Campbell Gault
A. L. Haley
Manly Wade Wellman
Anthony Boucher
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.