Keep your secrets safe in code!; Contains dozens of ideas for encoding writing and speech; How to break codes and invent alphabets; Traditional code tricks presented with a fresh and modern perspective; Have you ever needed to send a secret message to a friend? Or wanted to write something down but keep it private? The Little Book of Secret Codes tells you all you need to know about writing, drawing or talking in code in one handy volume, From the pictograms and hieroglyphs of the Native Americans and ancient Egyptians to text-message codes for the 21st century, it's packed with ideas to keep your secrets really secret! Learn the tricks spies use to write in invisible ink, decipher coded messages or communicate secretly even in public with hand signals or sign language. The Little Book of Secret Codes explains code wheels, fence-post messages and even includes whole alphabets to allow you to write a message in Hebrew, Russian or Greek. This pocket-sized book is easy to take everywhere and with so many tricks at your fingertips, you'll never be at a loss for ways to communicate in private at home, school or out and about!