Break the Code: Cryptography for Beginners (Dover Children's Activity Books)
Language: English
Published by Dover Publications, 2013
- Signed
- Softcover
- Used
Seller: Wonder Book, Frederick, MD, U.S.A.Wonder Book
AbeBooks seller since November 1, 1997
Condition: Used - Very good
US$ 12.79
Quantity: 1 available
Add to basketItem description from seller
Signed Copy . Inscribed by author on title page.
Seller Inventory # L06OS-00155
- Title
- Break the Code: Cryptography for Beginners (Dover Children's Activity Books)
- Author
- Johnson, Bud
- Publisher
- Dover Publications
- Publication year
- 2013
- Condition
- Very Good
- Signed
- Signed by Author(s)
- Binding
- Soft cover
- Language
- English
- ISBN 10
- 0486291464
- ISBN 13
- 9780486291468
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.
"Synopsis" may belong to another edition of this title.
Wonder Book
Frederick, MD, U.S.A.
Shipping rates within U.S.A.
| Item | 5 to 9 business days | 3 to 6 business days |
|---|---|---|
| First item | US$ 0.00 | US$ 10.98 |
Payment methods
Store description
With 3 stores less than 1 hour outside the DC/Metropolitan area (1 in Gaithersburg, 1 in Frederick and 1 in Hagerstown, MD), we have the largest selection of books in the tri-state area. Wonder Book and Video has been in business since 1980 and online since 1997. We have over 1 Million books for sale on our website and another 1 Million books for sale in our 3 locations. Items on Abe are not necessarily in stock at our retail locations. Please do not call the stores to place orders for Abe Books sales. We have a very active online inventory and as such, we can receive multiple orders for the same item. We fill those orders on a first come first serve basis, but will refund promptly any items that are out of stock. Since 1980 it has always been about the books. ALL kinds of books from 95 cent children's paperbacks to five figure rare and collectibles. A merging of the old and new is where we started, and it is where we are today. Our retail stores have always been places where a reader can rush in looking for a title needed for a term paper that is due the next day, or where bibliophiles can get lost "in the stacks" for as long as they wish. In 2002 USAToday recognized us as "1 of 10 Great Old Bookstores", and we have been featured in numerous other newspaper and TV stories including Washington Post and CSpan. Members ABAA, ILAB.…
Association member
Seller's business information
Wonder Book
Wonder Book and Video, 1550 Tilco Drive
Frederick, MD U.S.A. 21704
Terms of sale
We want you to be satisfied with the book you order. Our general description is conservative and the book should be as good or better than our general description may indicate.
RETURNS are cheerfully accepted up to 30 days. We ship out within 1-2 business days and U.S. Standard Shipments usually arrive within 6-9 business days, Priority 3-6. We want you to be satisfied with the book you order. Our general description is conservative and the book should be as good or better than our general description may indicate. We respond to every order inquiry within 2 business days, however our emails may occassionally get moved to spam/junk folders or refused from your internet/email provider. IF YOU HAVE EMAILED US AND HAVE NOT RECEIVED A RESPONSE - PLEASE CHECK YOUR SPAM SETTINGS AND/OR ADD OUR EMAIL TO YOUR ADDRESS BOOK.
Shipping terms
STANDARD DOMESTIC U.S. SHIPPING IS FREE. Priority Shipping is only $6.99 for first item, $1 each additional. Orders ship within 2 business days. Shipping outside of U.S. is typically between $8-13 and takes between 8-15 business days. Heavier books may require additional shipping. Faster Needs Please Inquire.