Scientific research has shown that solving logic puzzles keeps your mind younger and your memory sharper. ✓ Challenge your brain Nonogram puzzles.✓ This Book has 80 Nonogram Puzzles in multiple levels of complexity mostly Medium and Hard levels ✓. The answers to all the puzzles are included at the end of the book ✓. What are the basics of Nonogram Puzzles and how to solve them? Nonogram Puzzles are also known as Hanjie, Paint by Numbers, Pic-a-Pix, and many other names... It is a visual logic grid puzzle that starts with an empty grid and numbers on rows and columns. The numbers represent the shaded small squares or tiles in a given direction consecutively. If there is a set of numbers, e.g. 1 2 5 then that means there are 3 sets of shaded tiles; the first set has one shaded tile, the second has two shaded tiles and the third set has 5 shaded tiles. And there MUST be at least one empty tile between the sets. More instructions inside the book. Features: Size: 8 x 11.5 inch (large size) with softcover and paperback binding. Pages: 113 pages with 80 different puzzles (one per page) and the solutions of all the puzzles at the end. Best gift for anyone who is in love with Nonogram puzzles and Art logic games. Scroll up and order your copy.