Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
René Descartes
Francis Bacon
John Stuart Mill
Henri Poincaré
Plato
John Venn
Harriet Martineau
William Stanley Jevons
Frederic E. Clements
W. M. Flinders Petrie
Richard Garnett
A. D'Abro
Daniel Young
Ramón Turró
Nancy W. Hawkins
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.