BIBLIO is the largest independent book marketplace in the world, with over 100 million books.

Skip to content

Break the Code: Cryptography for Beginners (Dover Kids Activity Books)

Break the Code: Cryptography for Beginners (Dover Kids Activity Books)

Break the Code: Cryptography for Beginners (Dover Kids Activity Books)
Stock photo: cover may vary

Break the Code: Cryptography for Beginners (Dover Kids Activity Books) Paperback - 2013

by Johnson, Bud

Add to wish list
  • Used
  • Good
  • Paperback
Used - Good

Description

Dover Publications, 5/22/2013 12:00:01 A. paperback. Good. 0.3100 in x 10.9400 in x 8.2700 in.
Ask the seller a question Add to wish list
A$2.73
A$5.77 Delivery within USA
Standard delivery: 2 to 8 days
More delivery options
Ships from Evergreen Goodwill (Washington, United States)
The BIBLIO Guarantee

Details

  • Title Break the Code: Cryptography for Beginners (Dover Kids Activity Books)
  • Author Johnson, Bud
  • Binding Paperback
  • Condition Used - Good
  • Pages 80
  • Volumes 1
  • Language ENG
  • Publisher Dover Publications
  • Publication date 5/22/2013 12:00:01 A
  • Features Glossary
  • Bookseller's Inventory # mon0000362642
  • ISBN 9780486291468 / 0486291464
  • Weight 0.6 lbs (0.27 kg)
  • Dimensions 10.9 x 8.2 x 0.3 in (27.69 x 20.83 x 0.76 cm)
  • Size 0.3100 in x 10.9400 in x 8.2700
  • Age range 08 to 18 years
  • Grade levels 3 - 13
  • Category Children's Books/Ages 9-12 Fiction
  • Library of Congress subjects Cryptography
  • Library of Congress Catalogue Number 97019323
  • Dewey Decimal Code 652.8
  • Quantity available 1

About Evergreen Goodwill Washington, United States

Biblio member since 2025

Evergreen Goodwill helps people get jobs across Northwest Washington by offering high-quality free job training, education and job placement..

Terms of Sale:

30 day return guarantee, with full refund including original shipping costs for up to 30 days after delivery if an item arrives misdescribed or damaged.

Browse books from Evergreen Goodwill

Reader reviews for Break the Code: Cryptography for Beginners (Dover Kids Activity Books)

Write a review for this book

There are no reviews for this book yet. Be the first to write a review!

Your review will be anonymous unless you login or create an account first.

Overall rating
Remember: You’re rating the book as a work, not the seller or the condition of the specific copy you purchased!

Important Terms and Guidelines

  • Please focus on the book’s content and context. Also, add any personal comments as to how you enjoyed the book. Substantiate your likes and dislikes. You may make comparisons to other books.
  • Reviews must be at least 140 characters in length.
  • Please do not reveal critical plot elements.
  • This is not a help line. Contact customer support if you need help.
Your review must not include:
  • Obscenities, discriminatory language, or other insulting language not suitable for public domain
  • Advertisements, “spam” content, or references to other products, offers or websites.
  • Email addresses, URLs, phone numbers, physical addresses or other contact information.
  • Overly critical comments about other reviews or reviewers
  • Time-sensitive material (i.e. promotional tours, seminars, lectures, etc.)
  • Availability, price, or alternative ordering/shipping information

From the publisher

No, it's not a message from outer space! Just read it backwards, starting from the bottom line, to discover what this specially coded message says. (The extra letter "X" at the beginning was thrown in just to make the message a bit more mysterious.)
Codes have been used for centuries. Now, with the help of this entertaining book, you, too, will be able to decipher dozens of secret messages. Veteran cryptographer Bud Johnson not only describes the different techniques used in secret writing but also explains -- clearly and simply -- how to make and break six different kinds of codes: simple letter grouping, reverse trail, shift code, key word code, date shift code, and twisted path code. You'll even learn techniques for creating your own confidential messages!
Cartoons by illustrator Larry Daste accompany the 51 practice messages, along with easy-to-follow instructions explaining each type of code and how to use it. There's also a glossary defining common terms used by cryptographers, a sheet of reproducible graph paper for writing out messages, and a page of ready-made alphabets for shift and key word codes. And if all those funny drawings and helpful guidelines aren't enough to help you decode our secret messages, don't worry. Solutions are included at the end of the book.

Please wait a moment while we load the requested page.

tracking-