“Cryptography… what’s that?” “It’s the study of codes and ciphers, writing, and solving them. I’ve always loved that stuff. Remember those decoder rings in the cereal boxes? I used to make my mom buy box after box just so I could collect those things. And when I was 8, I drove my dad crazy because I wanted to learn Morse code…
Yes, more YA books that use cryptography elements, please. I don't even mind that you ELI5.
