Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Sir Thomas Little Heath
Unknown
Albert Einstein
Bertrand Russell and Alfred North Whitehead
Évariste Galois
Various
J. Malcolm Bird
Derrick Norman Lehmer
Clara Barton
George Boole
Marie Curie
Augustus De Morgan
Henri Poincaré
Levi L. Conant
David Hilbert
Julian Lowell Coolidge
Maria Mitchell
Mrs. Marcet
approximately 5th century Sunzi
David Slowinski
Bertrand Russell
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.