Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Charles Willard Diffin
Cory Doctorow
George Biddell Airy
William Henry Matthews
Charles Babbage
W. H. Hudson and Philip Lutley Sclater
Richard C. McGregor
Charles Kingsley
Jean-Henri Fabre
Ray Bradbury
Pierre Joseph Macquer
U. P. Hedrick
Isaac Asimov
Jules Verne
Philip K. Dick
Elisée Reclus
François Rabelais
Mary Wollstonecraft Shelley and James Montgomery
Various
Walter Jerrold
Isaac Asimov and Theodosius Dobzhansky
Sir Richard Francis Burton
A. T. Mahan
Alfred Russel Wallace
George Chetwynd Griffith
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.