Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Hans Gross
Gina Lombroso
Enrico Ferri
Roy Franklin Barton
Havelock Ellis
Cesare Lombroso
Hubert Joseph Treston
Andrew Lang
Doane Robinson
Hans Kurella
Kenneth James Beatty
Charles C. Royce
Franz Boas
James Devon
Arthur Griffiths
Bernard Keisch
Michele Longo
George Chetwynd Griffith
Guglielmo Ferrero
Various
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.