Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Gasparo Scaruffi, active 1613 Antonio Serra, and Geminiano Montanari
Luigi Arnaldo Vassallo
Olinto Marinelli
Pietro Caliari
Antonio Beltramelli
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.