This workbook, which accompanies The Cryptoclub, provides students with problems related to each section to help them master the concepts introduced throughout

Join the Cryptokids as they apply basic mathematics to make and break secret codes. This book has many hands-on activities that have been tested in both classro

Provides young adults with a review of cryptography, its evolution over time, and its purpose throughout history from the era of Julius Caesar to the modern day

In the first of a new duology, 13-year-old Clivo Wren learns that his recently deceased father was not an archaeologist, but a cryptid catcher, known for findin