Kristie Macrakis is professor of history, technology, and society at the Georgia Institute of Technology. She is a historian of science as well as espionage and the author of numerous books and articles. She is author of Surviving the Swastika: Scientific Research in Nazi Germany (Oxford University Press, 1993), Science under Socialism: East Germany in Comparative Perspective (Harvard University Press, 1999), and Seduced by Secrets: Inside the Stasi’s Spy‑Tech World (Cambridge University Press, 2008). She lives in Atlanta, GA.
Can’t Read This Headline? It’s Written in Invisible Ink
“Prisoners, Lovers, & Spies” tells the story of invisible writing, from lemon juice to microdots.
A Recipe for Invisible Ink
An excerpt from “Prisoners, Lovers & Spies: The Story of Invisible Ink from Herodotus to al-Qaeda.”