General Editor Robert Allen is a psychologist and author who has written puzzle books for over 12 years. He is CEO of the Mensa Foundation for Gifted Children.
An exciting book of code-breaking for kids which offers 100 messages to decipher as well as a fascinating array of secret codes to use with friends.
- Barnes & Noble
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Mensa Presents Secret Codes for Kids based on 0 ratings. 1 reviews.