Griddlers puzzles, also known as Griddlers or Nonograms , are picture logic puzzles in which cells in a grid have to be colored or left blank according to numbers given at the side of the grid to reveal a hidden picture. Some people compare Griddlers to Sudoku. However, the Griddlers puzzles always reveal a nice image as a result. This book consists of 64 color Griddlers puzzles, from small and easy up to big and complicated ones that may take several hours to solve. The solutions of the puzzles appear at the end of the book. About the Author: Griddlers.net is a community website dedicated to logic puzzle games.