Media type: E-Article Title: Review: Prisoners, Lovers, and Spies: The Story of Invisible Ink from Herodotus to al-Qaeda Contributor: Lukes, Igor imprint: The University of Chicago Press, 2016 Published in: The Journal of Modern History Language: English ISSN: 1537-5358; 0022-2801 Keywords: Book Reviews Origination: Footnote: