Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
S. M. Tenneshaw
Rog Phillips
Ross Rocklynne
Randall Garrett and Robert Silverberg
Robert Silverberg
Arnold Marmor
Stephen Marlowe
Robert W. Krepps
Frank M. Robinson
Sir William Magnay
Jules Verne
Joe Gibson
F. D. How
Edmond Hamilton
Hal Annas
W. C. Tuttle
Ivar Jorgensen
Charles B. Stilson
Dwight V. Swain
Kris Neville
Gordon R. Dickson
Henry Farrell
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.