"Cicco Simonetta's Rules for Deciphering Secret Writings" is an interesting book written by the famous Italian cryptographer Cicco Simonetta. In the book, the author shares his knowledge and experience in the field of revealing secret texts. It reveals the secrets of various codes, ciphers and encrypted messages, teaches the reader to detect and decipher secret writings using special methods and techniques. This book will be a useful source of information for anyone interested in cryptography and deciphering visual ciphers.