The best Sudoku puzzle books offer a variety of difficulty levels, from beginner to expert, along with high-quality paper and easy-to-read grids. For beginners, best Sudoku puzzle books like "The Sudoku Puzzle Book for Beginners" by Nikalas Catlow offer simple puzzles with clear instructions. For intermediate players, "The Killer Sudoku" series provides more challenging and exciting puzzles. Advanced solvers might enjoy "Will Shortz Presents The Ultimate Sudoku" for complex grids. Popular choices also include "The Big Book of Sudoku" by Conceptis Puzzles, which features over 500 puzzles. These books typically include solutions at the end, making them a great tool for improving skills and enjoying hours of brain-teasing fun.