Writing secret codes and sending hidden messages

By Gyles Brandreth

Book Overview

Explains how to use secret codes, including Morse, Caesar's, Sandwich, Rosicrucian, and others, as well as how to send hidden messages using invisible ink, how to take fingerprints, and other tricks... This description may be from another edition of this product.

• Format: Hardcover
• Language: English
• ISBN: 0806946903
• ISBN13: 9780806946900
• Release Date: January 1984
• Publisher: Sterling Pub. Co
• Length: 127 Pages
• Weight: 0.58 lbs.
• Age Range: 12 years and up
• Grade Range: Grade 7 and higher