Reviews for Making Secret Codes


Library Media Connection Reviews 2011 March/April
An appealing topic and size as well as eye-catching illustrations and limited chapters make this series appropriate for younger readers, academically challenged older students, and most middle grade students. Mirror writing, geometric codes, Morse Code, and the World War II German Enigma machine are samples of history and techniques covered. Leonardo da Vinci possibly used mirror writing because a left-handed person writing from left to right smears ink. Civil War forces used a transposition code. High student interest in the topic will make this a series hard to keep on the shelves. School library collections will certainly benefit from including the series in their collections. Bibliography. Glossary. Websites. Table of Contents. Index. Recommended. Ann Bryan Nelson, Volunteer Media Specialist and Guest Teacher, Thompson Ranch Elementary School, Dysart Unified School District, Surprise, Arizona ¬ 2011 Linworth Publishing, Inc.

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School Library Journal Reviews 2011 January

Gr 4-7--These cryptography titles look at various types of codes, such as Civil War Union Route codes and Navajo code talkers, as well as ingenious deciphering methods. Spoken codes in history, including the Underground Railroad and POWs during the Vietnam War, are introduced by using various examples of word substitutions. Educators will appreciate the concise information provided by codes that have shaped world history. Sample cryptographs are scattered throughout the pages, along with other noteworthy facts. Historical photographs, highlighted vocabulary words and definitions, and do-it-yourself suggestions will keep readers interested. Fans of adventure fiction, such as the popular "39 Clues" series (Scholastic) and Pseudonymous Bosch's "Secret Series" (Little, Brown), will sharpen their super-sleuthing skills in no time. These books are great for beginners of cryptology and those who might be interested in designing a science-fair project display, and they will enhance collections that are weak in this fascinating subject area.--Krista Welz, North Bergen Public Library, NJ

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