Books
2 results found| Title | Authors | Description | OpenBook ID | |
|---|---|---|---|---|
|
Ciphers, Codes, Algorithms, and Keys | Laura La Bella | 64 pages : 24 cm | OL28375244W |
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Fun with secret writing | Geoffrey Frederick Lamb | 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. | OL6136406W |