9780365775522 - Bentley's Second Phrase Code (Classic Reprint) de Bentley, E. L. (3 resultados)

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condición: New. Print on Demand. This book is a codebook that contains phrases and their corresponding five-letter codeword equivalents. An introduction explains how to use the codebook to encode and decode messages, including special instructions for encoding and decoding prices and currency. The five-letter codewords are arranged alphabetically, with each phrase placed under its subject word, that is, the most important word in the phrase. The codewords in this book have been carefully selected to have the following features: a minimum difference of two letters between any two codewords; if any two consecutive letters in any codeword are reversed, the word so formed will not be found in the code; and if any three consecutive letters in any codeword are reversed, the word so formed will not be found in the code. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.