Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.2
Points
2.0
Fiction/Nonfiction
Nonfiction
Word Count
9695
Points per Word
0.000206
Page Count
48
Points per Page
0.041667
Description
This book presents an overview of various types of codes and ciphers used throughout history, famous cryptologists, and explains how to create your own secret messages.