a Pictorial Guide to Cryptography

with Stories, Analogies and Meaningful Pictures

From age-old methods and keys to how those technologies evolved into modern computer cryptography. No math or other expertise is needed. Accompanying explanatory pictures cement concepts.

Click here for free chapters.

www.docrypt.com links to our software

Addison-Wesley Pearson Education Corp. has given us permission to post the body of our book on our web site. They request we include the following:

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form, or by any means electronic, mechanical, photocopying, recording, or otherwise, without prior consent of the publisher. Pearson Education 617 848 7047.

Click here to read reviews and buy.