Number search puzzles are more than an inexpensive source of entertainment. They are also a fun and challenging way to stay mentally fit and enhance your pattern recognition skills. In this book, the puzzles are particularly challenging because they each include 100 four-digit or five-digit numbers (or a combination of numbers and symbols) for you to find. If you get stuck - or want to check your answers, the final chapter presents the complete solution to every puzzle. For hours of fun and relaxation that you can feel really good about, buy this book!