One of the most popular segments in Boys' Life magazine, Codemaster is the key to writing and reading dozens of clever codes, from the Pigpen Code and the Playing Card Code to the Math Code.
- ISBN10 0590373862
- ISBN13 9780590373869
- Publish Date 1 May 1998
- Publish Status Out of Stock
- Out of Print 8 December 2011
- Publish Country US
- Imprint Scholastic US
- Format Paperback
- Pages 10
- Language English