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