by Bud Johnson and Larry Daste
Sales Rank: 1719483
$25.99 At Amazon
Paperback: 71 pages
Publisher: Dover Publications June 1997
Language: English
ISBN-10: 0486291464
ISBN-13: 978-0486291468
Product Dimensions:
11.2 x 8.5 x 0.2 inches
Shipping Weight: 8.8 ounces
Customer Reviews & Comments
I bought it with a bunch of other books about cryptography (serious ones), but it is written for kids. One of the codes is a sentence with the words written backwards. Another is letters split up into blocks, but you can still just read the words straight across. It's really not helpful.
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