In this title, readers will learn how spies used covert communication techniques such as secret codes, invisible ink, and tiny cameras to pass intelligence to their handlers. Real-life spies and missions are explored. Readers can also try making their own invisible ink, dead drops, and secret codes. --from Amazon.
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In this title, readers will learn how spies used covert communication techniques such as secret codes, invisible ink, and tiny cameras to pass intelligence to their handlers. Real-life spies and missions are explored. Readers can also try making their own invisible ink, dead drops, and secret codes. --from Amazon.
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Add this copy of Spy Communication to cart. $26.23, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2024 by ABDO & Daughters.
Add this copy of Spy Communication (Spy Guide) to cart. $40.07, new condition, Sold by Russell Books rated 4.0 out of 5 stars, ships from Victoria, BC, CANADA, published 2024 by ABDO & Daughters.
