Secret Codes

ISBN

9780746023297

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$7.95

Author	O'Brien, Eileen
Format	Paperback
Details	Dimensions:9.8" x 7.9" x 0.1" Status:Out of Print Product Type:Individual Title Product Format:Books Copyright Year:1997 Publication Date:1997/03 Number of Pages:1 Illustrated:Yes Ages:8- 12 Grades::3- 7 Media Class:Print Carton Qty:10

The Usborne Book of Secret Codes features al l kinds of codes and secret writing to learn, gadgets that y oung readers can make for coding and decoding messages and h ints on how to pass top secret information without it being intercepted '