Unsolved! The History and Mystery of the World's Greatest Ciphers from Ancient Egypt to Online Secret Societies
Craig P. Bauer · 2 editions, first published 2019

Contributors
Editions
- Unsolved! The History and Mystery of the World's Greatest Ciphers from Ancient Egypt to Online Secret Societies — 2019 · Princeton University Press · 1st Edition
- Unsolved! The History and Mystery of the World's Greatest Ciphers from Ancient Egypt to Online Secret Societies — 2019 · Princeton University Press · 1st Edition
148 copies in libraries