This big book of sodoku puzzles includes:8.5" x 11" pages; 375 total300 medium puzzles of medium difficulty suitable for adults and older childrenSolutions for every puzzleEasy to read grids375 pages totalWhat better way to use your free time than sodoku? These puzzles are fun, relaxing, addicting, and good for your brain. This book is large enough to write in easily but still a good size to carry around from room to room or to and from the car.Great for long trips in the car or when sitting in the park on a nice day! Try one and you're sure to be hooked on these puzzles. Finish the book and reward yourself with another!