Miller, Marvin.

How to write and decode secret messages / by Marvin Miller - New York : Scholastic, 1998. - 69 p. : ill. ; 20 cm.

Explains how to write and decipher space codes, hidden word codes, and alphabet codes.

ISBN: 0590373862

Subjects--Topical Terms:
Ciphers.

Dewey Class. No.: 652.8