Classic Codes and Ciphers

Rachael L. Thomas

Cover of Classic Codes and Ciphers

Classic Codes and Ciphers

Age Rating, Reading Level & Content Guide

by Rachael L. Thomas

Alternator Books; Cryptology (Alternator Books)

Reading Level 6 Gentle (Lvl 1) Ages 9-12 Balanced Read Page-Turner

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

Science & NatureWritten CommunicationHistory

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 — Gentle
Gentle Mild Moderate Intense Very Intense

No conflict beyond everyday childhood experiences. Safe for sensitive readers.

Data confidence: standard

Was our "Gentle" content intensity rating accurate for this book?

Reading Insights

Hook Factor

7/10

High engagement — fast-paced, fun, and hard to put down. Great for reluctant readers.

Discussion Potential

1/10

A lighter read — great for independent enjoyment.

Book DNA

Multi-dimensional content fingerprint

Vocabulary Level
5
Emotional Weight
2
Narrative Pace
9
Theme Richness
3
World Scope
1
Data Confidence
8

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Details

Book Length

36 pages
1,771 words
12m read-aloud
ISBN
9781728404615
Pages
36
Publisher
Lerner Publications TM
Published
2021
Type
Nonfiction
Word Count
1,771
Read-Aloud
~12 min
Text Density
Picture-Heavy

Genres

Subjects

Written Communication