books by subject
Puzzles & Quizzes
Seeing is Believing (Amazing brain games)
Fantastic Optical Illusions & Puzzles
X is for UneXplained: An Incredible Selection of Inexplicable Trivia
Tangrams: The Ancient Shapes Game (Lagoon games)
Mind-Bending Classic Word Puzzles (Mind Bending Puzzle Books)
The Number Puzzler: The Art of Cracking Number Sequences
The Number Detective: 100 Number Puzzles to Test Your Logical Thinking
100 Ready-made Quizzes
MEGA QUIZ BOOK (Puzzle Book)
Huge Quiz Book
General Knowledge Quizzes
Errata
Eight Days a Week: Puzzles, Problems and Questions to Activate the Mind
Games for Thinking (Stories for Thinking)
Mind Olympics
The Book of Busy Bears: A Pot-pourri of Visual Games
The Astounding Astromaze
Hidden Words: Bk. 3: Bible Word Search (Hidden Words: Bible Word Search)
Quirky Quizzes for Lively Libraries: Bk. A (Quirky Quizzes for Lively Libraries: Quizzes and Puzzles for Use in Library Time)
Oracle Mind Games and Puzzles
Mountain Trivia Challenge
Think about it (Amazing brain games)
Mega Jumbo Large Print Word Search
Book of Medical Blunders
The Best Pub Quiz Book Ever! 2
Mensa Word Puzzles (Mensa adult titles)
The Best Pub Quiz Book Ever!
Time Trials: Adding and Subtracting; Multiplying and Dividing; Fractions; Spelling
The Wrong Kind of Shirts: Outrageous Football Excuses, Rants and Verbal Own Goals