Griddlers Puzzle Book Griddlers or Nonograms, also called Pic-a-Pix, Picross, Japanese Crosswords, and Pixel Puzzles, are logic puzzles that use number clues around a grid to create an image. Simple but challenging game, useful to boost the power of mindfulness by making it fun and entertaining for kids. Learning strategies and making the best decisions can be difficult for children and adolescents to take without practice by creating situations like this game to help them achieve greater self-regulation, focus more, and stress less. This Griddlers Puzzle Book is a fun way for children and adolescents to sharpen their minds and test their logic. Nonogram Puzzle Book Features: Loads of Puzzles: 73 Puzzles from Tinny (5x5), Small (10x10) to Large (15x15). Suitable for teens and beginners adults. Perfectly Sized: 8.5"x11" The solution at the Back of the Book Premium Matte Color Cover