How long does it take to read Codes, Ciphers and Secret Writing?
Codes, Ciphers and Secret Writing by Martin Gardner takes about 1 hour 56 minutes to read at 250 words a minute.
About 1 hour 56 minutes
An evening's read
First published 1972. 105 pages, about 28,875 words. Written for children.
4 days at 30 minutes a day
Estimate based on 275 words per page.
At other speeds
| Slow, 150 words a minute | 3 hours 13 minutes |
| Average, 250 words a minute | 1 hour 56 minutes |
| Fast, 400 words a minute | 1 hour 12 minutes |
The page count is the median across 8 editions, so your copy may differ. How we calculate.
About the book
Explains in simple terms how to encode and decode messages in various ciphers, describes coding machines, and gives formulas for invisible ink.
Subjects: Ciphers, Cryptography, Cryptography., Ciphers., Signs and symbols, Writing
