Codes Ciphers and Secret Writing

Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks . . . even invisible writing and sending messages through space. 45 ...

Codes  Ciphers and Secret Writing

Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks . . . even invisible writing and sending messages through space. 45 diagrams.

Top Secret

Presents history, trivia, and code-breaking tales in a guide book to the world of secret writing that includes examples of a variety of codes and ciphers.

Top Secret

Presents history, trivia, and code-breaking tales in a guide book to the world of secret writing that includes examples of a variety of codes and ciphers.

Codes and Ciphers

An explanation of the development, methods, and use of cryptography throughout history.

Codes and Ciphers

An explanation of the development, methods, and use of cryptography throughout history.

Codes Ciphers and Secret Writing

Describes various types of codes and ciphers giving examples of their use.

Codes  Ciphers and Secret Writing

Describes various types of codes and ciphers giving examples of their use.

Top Secret

Presents history, trivia, and code-breaking tales in a guide book to the world of secret writing that includes examples of a variety of codes and ciphers.

Top Secret

Presents history, trivia, and code-breaking tales in a guide book to the world of secret writing that includes examples of a variety of codes and ciphers.

Codes and Secret Writing

Explains how to make and break several kinds of codes, how to use secret languages and how to make invisible inks.

Codes and Secret Writing

Explains how to make and break several kinds of codes, how to use secret languages and how to make invisible inks.

Codes and Ciphers A History Of Cryptography

This vintage book contains Alexander D’Agapeyeff’s famous 1939 work, “Codes and Ciphers - A History of Cryptography”. Cryptography is the employment of codes and ciphers to protect secrets, and it has a long and interesting history.

Codes and Ciphers   A History Of Cryptography

This vintage book contains Alexander D?Agapeyeff?s famous 1939 work, ?Codes and Ciphers - A History of Cryptography?. Cryptography is the employment of codes and ciphers to protect secrets, and it has a long and interesting history. This fantastic volume offers a detailed history of cryptography from ancient times to modernity, written by the Russian-born English cryptographer, Alexander D'Agapeyeff. Contents include: ?The beginnings of Cryptography?, ?From the Middle Ages Onwards?, ?Signals, Signs, and Secret Languages?, ?Commercial Codes?, ?Military Codes and Ciphers?, ?Types of Codes and Ciphers?, ?Methods of Deciphering?, etcetera. Many antiquarian texts such as this, especially those dating back to the 1900s and before, are increasingly hard to come by and expensive, and it is with this in mind that we are republishing this book now in an affordable, modern, high quality edition. It comes complete with a specially commissioned new biography of the author.

Top Secret

This practical field guide contains everything a young person needs to know about the art of concealment: making and breaking codes, mastering cipher systems, experimenting with secret writing, and making--and breaking--their own secret ...

Top Secret

This practical field guide contains everything a young person needs to know about the art of concealment: making and breaking codes, mastering cipher systems, experimenting with secret writing, and making--and breaking--their own secret codes. Illustrations.

Codes Ciphers and Other Cryptic and Clandestine Communication

Packed with historical anecdotes about cryptography's most famous pioneers and practitioners, this book covers the development of codes through the ages from the druids, Marie Antoinette, Aaron Burr, Confederate spies in the Civil War to ...

Codes  Ciphers and Other Cryptic and Clandestine Communication

Traces the history of coding and the use of secret codes, and teaches readers how to send their own secret messages

Codes Ciphers and Secret Languages

Presents Indian sign language, Morse code, Jefferson's cipher wheel and other European and American codes and ciphers from ancient times to the present, in their historical context

Codes  Ciphers  and Secret Languages

Presents Indian sign language, Morse code, Jefferson's cipher wheel and other European and American codes and ciphers from ancient times to the present, in their historical context

Secret Writing

Secret Writing


Codes Ciphers and Secret Writing

Explains in simple terms how to encode and decode messages in various ciphers, describes coding machines, and gives formulas for invisible ink.

Codes  Ciphers and Secret Writing

Explains in simple terms how to encode and decode messages in various ciphers, describes coding machines, and gives formulas for invisible ink.

Writing Secret Codes and Sending Hidden Messages

Explains how to use secret codes, including Morse, Caesar's, Sandwich, Rosicrucian, and others, as well as how to send hidden messages using invisible ink, how to take fingerprints, and other tricks and techniques.

Writing Secret Codes and Sending Hidden Messages

Explains how to use secret codes, including Morse, Caesar's, Sandwich, Rosicrucian, and others, as well as how to send hidden messages using invisible ink, how to take fingerprints, and other tricks and techniques.

Cryptography

Elementary account of ciphers, history, types, etc., with 151 examples of ciphers and codes. Solutions. Good introduction for beginners.

Cryptography

Elementary account of ciphers, history, types, etc., with 151 examples of ciphers and codes. Solutions. Good introduction for beginners.

Secret Writing codes and Messages

Discusses a variety of codes and explains how to send and decode messages.

Secret Writing  codes and Messages

Discusses a variety of codes and explains how to send and decode messages.

Secret Writing

Secret Writing


Secret Writing

Secret Writing


Secret Writing

Secret Writing


Fun with Secret Writing

Secret Writing Geoffrey Lamb Invent mysterious codes to transmit personal correspondence ! Decipher secret messages — just ... You'll learn how to use ciphers employed by Julius Caesar ( “ Moving Ahead " ) . You'll work with codes used ...

Fun with Secret Writing

Examines a number of different ways of writing secret messages, including using invisible ink and a variety of ciphers. Provides suggestions and aids for code-breaking.