Lost Letters is a book of unique and challenging word puzzles where you examine patterns to discover missing words. Each of the 175 family-friendly puzzles was generated by a specialized computer program written by the author. Through the use of visual cognitive patterns to solve each puzzle, finding the solutions will stimulate your brain. The book is ready to challenge all skill levels, from easy to difficult. Puzzles can be solved in anywhere from two to 30 minutes. Great for travel like plane and car trips or just filling in time anywhere, Lost Letters is sure to please any word game lover.For sample pages please visit our website at www.LostLetters.club.