A Conversation with Kristie Macrakis, author of “Prisoners, Lovers, and Spies: The Story of Invisible Ink from Herodotus to al-Qaeda”, August 7, 2014
Prisoners, Lovers, and Spies is a book about concealing and revealing secret communications. It is the first history of invisible writing, uncovered through stories about scoundrels and heroes. Spies were imprisoned or murdered, adultery unmasked and battles lost because of faulty or intercepted secret communications. Yet, successfully hidden writing helped save lives, win battles, and ensure privacy; occasionally it even changed the course of history.
From the Yale University Press catalog copy