Classic Codes and Ciphers
Rachael L. Thomas
Classic Codes and Ciphers
Age Rating, Reading Level & Content Guide
by Rachael L. Thomas
Alternator Books; Cryptology (Alternator Books)
The text is written at a 6th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is gentle with no concerning themes.
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About This Book
Unlock the fascinating world of secret messages and hidden codes that have kept information safe throughout history. Discover how clever minds created and cracked ciphers using tools from ancient belts to modern machines. Put your own skills to the test by designing a unique secret code of your own!
Themes
Quick Assessment
This is a Level 6 book with gentle content intensity. No notable content concerns flagged. Written for readers ages 9-12.
For Parents
Content Intensity
Level 1 — GentleNo conflict beyond everyday childhood experiences. Safe for sensitive readers.
Was our "Gentle" content intensity rating accurate for this book?
Reading Insights
Hook Factor
7/10High engagement — fast-paced, fun, and hard to put down. Great for reluctant readers.
Discussion Potential
1/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Details
Book Length
- ISBN
- 9781728404615
- Pages
- 36
- Publisher
- Lerner Publications TM
- Published
- 2021
- Type
- Nonfiction
- Word Count
- 1,771
- Read-Aloud
- ~12 min
- Text Density
- Picture-Heavy