Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Charles Darwin
Oskar Pfungst
Jean Baptiste Pierre Antoine de Monet de Lamarck
Jr. James Weir
Edward L. Thorndike
Herbert Spencer
Ayn Rand
George John Romanes
José Ingenieros
Auguste Forel
C. Lloyd Morgan
George Santayana
Thomas G. Gentry
Th. Zell
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.