Logic & Brain Teasers

Hard Sudoku puzzle books vol. 1: Hard, Very Hard and Extremely Hard Sudoku - Total 300 Sudoku puzzles to solve - Includes solutions (Hard to extreme)

Zephyros Press

The 125 Best Brain Teasers of All Time: A Mind-Blowing Challenge of Math, Logic, and Wordplay

Smithsonian Word Search Natural History: Earth's Treasures - Spiral-Bound Puzzle Multi-Level Word Search Book for Adults Including More Than 200 Puzzles (Brain Busters)

Cottage Door Press

Large Print Word Search Puzzles Volume 2: Over 200 Puzzles to Complete with Solutions - Include Spiral Bound / Lay Flat Design and Large to Extra-Large Font for Word Finds (Brain Busters)

Sudoku: Over 200 Puzzles & Solutions, Easy to Hard Puzzles for Adults, Spiral-Bound (Brain Busters)

Brain Games - Large Print Sudoku Puzzles (Swoosh)

Brain Games - Stress Free: Word Search Puzzles

Triumph Books (IL)

Jumble Mania: A Collection for Passionate Puzzlers (Jumbles)

iBooks

The Secret

Publications International, Ltd.

Brain Games - Picture Puzzles #2: How Many Differences Can You Find?

Union Square & Co.

Speedsolving the Cube: Easy-to-Follow, Step-by-Step Instructions for Many Popular 3-D Puzzles

Publications International, Ltd.

Brain Games - Relax and Solve: Sudoku (Toile)