Print length : 115 pages. The original version being published in the late 1940s, there are things about this that are outdated (typewriters, for one), but the actual information is still accurate, allowing you to learn how to encode and decode quite a few different ways.
| Original Language | English |
| Vintage | Yes |
| Format | Paperback |
| Language | English |
| Topic | Writing |
| Ex Libris | Yes |
| Narrative Type | Nonfiction |
| Intended Audience | Adults |
| Publication Year | 1948 |
| Era | 1960's |
| Illustrator | C. De La Nougerede |
| Genre | Non fiction |
| Country Of Origin | United States |
| Number Of Pages | 152 |
Print length : 115 pages. The original version being published in the late 1940s, there are things about this that are outdated (typewriters, for one), but the actual information is still accurate, allowing you to learn how to encode and decode quite a few different ways.