Tells the stories of ninety-five situations in which code and hidden messages have been used throughout history.

'This book is a page-turner - endlessly fascinating, totally compelling, and incredibly informative. I could not put it down.''rory Freedman, Co-author of New Y

To defeat your enemies you must know them well. In wartime, however, enemy codemakers make that task much more difficult. If you cannot break their codes and re

A collection of four all-new strange stories from the sleepy town of Gravity Falls in one original graphic novel. Written by Alex Hirsch. Illustrated by Asaf Ha