Books by Ella Schwartz

CAN YOU CRACK THE CODE? by Ella Schwartz
Released: March 26, 2019

"A serviceable if too-often superficial update for solid but now-dated histories such as Gary Blackwood's Mysterious Messages (2009). (index, source list) (Nonfiction. 10-13)"
Hands-on history for budding spies, hackers, or anyone with a secret message to send. Read full book review >