books by subject
Brain Teaser Games
The Spurs Miscellany
Eye Tricks: You Won't Believe Your Eyes
Flip Quiz French (Quiz Book)
AWESOME 3D PUZZLE CHALLENGE
Chambers Word File
I Never Knew That About Britain: The Quiz Book: Over 1000 questions and answers about our glorious isles
The Turing Tests Expert Code Puzzles: Foreword by Sir Dermot Turing (The Turing Tests, 6)
Chambers Crossword Dictionary
Top 10 Of Everything 2004 (The) (DK top 10)
The Amazing Book of Mazes
The Ultimate Mathematical Challenge: Over 365 puzzles to test your wits and excite your mind
Brain Power: Everything You Need to Know for a Healthy, Happy Brain
The Times Big Book of Quick Crosswords Book 1: 300 world-famous crossword puzzles (The Times Crosswords)
The Times MindGames Number and Logic Puzzles Book 1: 500 brain-crunching puzzles, featuring 7 popular mind games (The Times Puzzle Books)
The Oxford Essential Guide to the English Language
Seriously Curious: 109 facts and figures to turn your world upside down
I An Distracted by Everything
The Centenary of the Crossword: The Story of the World's Most Popular Puzzle
The Ultimate Trivia Quizbook (Quiz Books)
Daily Telegraph Quick Crosswords Book 14: No.14 (The "Daily Telegraph" Quick Crossword Book)
Brain Power: Unlock the Power of Your Mind
Games: French Grammar Puzzles: Crossword Puzzles for Reinforcing and Reviewing Grammar
52 PooDokus to Do While You Poo: Puzzles, Activities and Trivia to Keep You Occupied
The Mathematical Recreations of Lewis Carroll: Pillow Problems and a Tangled Tale (Dover Recreational Math)
Medieval Puzzles
Enigma: Crack the Code: 1
How Many Moons Does the Earth Have?: The Ultimate Science Quiz Book
Bamber Gascoigne's Challenging Quiz Book
General Knowledge Genius!: A Quiz Encyclopedia to Boost Your Brain
