In Preparation for ESPIONAGE

In preparation of the Espionage world history class return for the 2022-2023 year, I am excited to share this article on letter folding. Letter folding, ciphers, and other methods of secret keeping form just a small part of this class! Delighted to bring it back to a new generation of homeschoolers! www.nytimes.com/2022/01/10/science/european-royals-letterlocking.html