The art of love and war
Intrigue and inquisition
Confessing secrets
Invisible landscapes
Revolutionary ink
Magic
The secret-ink war
The United States enters the secret-ink war
Visible Nazis
The mystery of the microdot
Invisible spy catchers
Out in the cold
Hiding in porn sites.
Prisoners, lovers, & spies : the story of invisible ink from Herodotus to al-Qaeda by Kristie Macrakis. ISBN 9780300179255. Published by Yale University Press in 2014. Publication and catalogue information, links to buy online and reader comments.