This is the first comprehensive study of an ingenious number-notation from the Middle Ages that was devised by monks and mainly used in monasteries. A simple no

"As gripping as a good thriller." --The Washington Post Unpack the science of secrecy and discover the methods behind cryptography--the encoding and decoding of

Reproduction of the original: Rasputin the Rascal Monk by William Le Queux

Insights from the history of numerical notation suggest that how humans write numbers is an active choice involving cognitive and social factors. Over the past

Summer, 1643 England is at war with itself. King Charles I has fled London, his negotiations with Parliament in tatters. The country is consumed by bloodshed. F