You can listen to this audiobook in formats: WAV, AIFF, MPEG4, AC3, MP3, WMA, MPEG-4 DST, FLAC (compression RAR, RPM, ZIP, LZO)
Total pages original book: 112
Includes a PDF summary of 12 pages
Duration of the summary (audio): 8M52S (2.4 MB)
Description or summary of the audiobook: Children love to learn secret codes and write encrypted messages and this book will teach them everything they need to know, including Semaphore and Morse code, 'Grid code' used in the American Civil War, Egyptian hieroglyphics and traditional number replacement and alphabet switching codes.
Other categories, genre or collection: General Knowledge
Download servers: Mediafire, FileHosting, Google Drive, Your Bittorrent, FreakShare, BitShare. Compressed in RAR, RPM, ZIP, LZO