Dooley, John F. (25 July 2015). "Review of Prisoners, Lovers, and Spies: The Story of Invisible Ink from Herodotus to al-Qaeda by Kristie Macrakis". Cryptologia. 40 (1): 107–112. doi:10.1080/01611194.2015.1028684. S2CID825438.
Lukes, Igor (September 2016). "Book Reviews Prisoners, Lovers, and Spies: The Story of Invisible Ink from Herodotus to al-Qaeda. By Kristie Macrakis. New Haven, CT: Yale University Press, 2014. Pp. xiv+377. $27.50". The Journal of Modern History. 88 (3): 638–640. doi:10.1086/687421.
MacRakis, Kristie; Bell, Elizabeth K.; Perry, Dale L.; Sweeder, Ryan D. (2012). "Invisible Ink Revealed: Concept, Context, and Chemical Principles of "Cold War" Writing". Journal of Chemical Education. 89 (4): 529–532. Bibcode:2012JChEd..89..529M. doi:10.1021/ed2003252.
MacRakis, Kristie; Bell, Elizabeth K.; Perry, Dale L.; Sweeder, Ryan D. (2012). "Invisible Ink Revealed: Concept, Context, and Chemical Principles of "Cold War" Writing". Journal of Chemical Education. 89 (4): 529–532. Bibcode:2012JChEd..89..529M. doi:10.1021/ed2003252.
Reisert, Sarah (2015). "Under Cover of Ink". Distillations. 1 (4): 46–47. Archived from the original on 24 March 2018. Retrieved 23 March 2018.
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Dooley, John F. (25 July 2015). "Review of Prisoners, Lovers, and Spies: The Story of Invisible Ink from Herodotus to al-Qaeda by Kristie Macrakis". Cryptologia. 40 (1): 107–112. doi:10.1080/01611194.2015.1028684. S2CID825438.