Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Albert Einstein
Robert Boyle
B. G. Jefferis and J. L. Nichols
H. Stanley Redgrove
Albert Einstein and H. Minkowski
Benjamin Franklin
J. Malcolm Bird
Charles Hose and William McDougall
Bertrand Russell
R. Austin Freeman
Henri Poincaré
David Hilbert
Sir Arthur Stanley Eddington
H. L. Mencken
George H. Napheys
Simon Newcomb
Bertha May Clark
James J. Walsh
Henry S. Salt
Sir Robert Christison
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.