Title: Extreme Spot the Difference: Challenging High-Definition Photo Puzzles-Includes a Unique Transparent Plastic Spotters Grid, Author: Tim Dedopulos
Title: Puzzle Baron's Kids Logic Puzzles: Nearly 400 Brain Challenges for Developing Minds, Author: Puzzle Baron
Title: Symbolic Logic and the Game of Logic, Author: Lewis Carroll
Title: What Is the Name of This Book?: The Riddle of Dracula and Other Logical Puzzles, Author: Raymond M. Smullyan
Title: Will Shortz Presents The Monster Book of KenKen: 300 Easy to Hard Logic Puzzles That Make You Smarter, Author: Tetsuya Miyamoto