- Paperback: 64 pages
- Publisher: Dover Publications (May 17 2002)
- Language: English
- ISBN-10: 0486420981
- ISBN-13: 978-0486420981
- Product Dimensions: 21.4 x 13.6 x 0.6 cm
- Shipping Weight: 95 g
- Average Customer Review: 4.0 out of 5 stars See all reviews (1 customer review)
- Amazon Bestsellers Rank: #1,735,001 in Books (See Top 100 in Books)
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Product Details |
Product Description
Product Description
Fascinating, easy-to-understand book for would-be cryptanalysts of all ages teaches how to invent and decipher a host of codes and secret messages, including the "Moving Ahead" cipher used by Julius Caesar; dots and pinpricks, as used by the secret Rosicrucian society; and even a system used by Sherlock Holmes. 14 black-and-white illustrations.
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Customer Reviews
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Most helpful customer reviews
4.0 out of 5 stars
I needed this book for my club in middle school,
By
This review is from: Fun with Secret Writing (Paperback)
Like most boys growing up in era of the cold war and the original James Bond movies, I was part of a club where we created our own secret codes. It was great fun and we were constantly improving our codes to thwart the efforts of others who wanted to read those "important" messages. Had this book been available back then, we would have devoured it. Written at the level of a middle school student, the basic codes are thoroughly covered, yet not at a level beyond the child of the early teen years. No mathematics beyond simple arithmetic is used.As befits the original publication date of 1975, computers are not part of the codes, which I found to be an attractive feature. Writing simple codes is an exercise in thought, a process that computers sometimes interfere with. This is a book that can be read for enjoyment, and it can also be used as a book for class work designed to be fun. It should be in every middle school library.
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Most Helpful Customer Reviews on Amazon.com (beta) Amazon.com:
4.0 out of 5 stars (1 customer review) 4 of 4 people found the following review helpful:
4.0 out of 5 stars
I needed this book for my club in middle school,
By Charles Ashbacher - Published on Amazon.com
This review is from: Fun with Secret Writing (Paperback)
Like most boys growing up in era of the cold war and the original James Bond movies, I was part of a club where we created our own secret codes. It was great fun and we were constantly improving our codes to thwart the efforts of others who wanted to read those "important" messages. Had this book been available back then, we would have devoured it. Written at the level of a middle school student, the basic codes are thoroughly covered, yet not at a level beyond the child of the early teen years. No mathematics beyond simple arithmetic is used.As befits the original publication date of 1975, computers are not part of the codes, which I found to be an attractive feature. Writing simple codes is an exercise in thought, a process that computers sometimes interfere with. This is a book that can be read for enjoyment, and it can also be used as a book for class work designed to be fun. It should be in every middle school library. |
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