books by subject
Brain Teaser Games
Kids' Sudoku for Dummies (For Dummies Series)
The Puzzling Adventures of Dr.Ecco (Dover Recreational Math)
Paradox: The Nine Greatest Enigmas in Physics
Paradox The Nine Greatest Enigmas in Physics by Al-Khalili, Jim ( Author ) ON Apr-12-2012, Hardback
The Telegraph All New Quick Crosswords 6 (The Telegraph Puzzle Books)
Daily Mail Big Book of Quick Crosswords Volume 8 (The Daily Mail Puzzle Books)
Daily Mail Big Book of Quick Crosswords 9 (The Daily Mail Puzzle Books)
The GCHQ Puzzle Book
The Canterbury Puzzles (Puzzle Books)
The Penguin Book of Puzzles (Puzzle Books)
Pocket Posh Brain Games: 100 Puzzles
Mensa Logic Puzzles
Test Your IQ: 400 Questions to Boost Your Brainpower
The Times Book of IQ Tests: Book One
IQ and Psychometric Tests: Assess Your Personality Aptitude and Intelligence (Testing Series)
Ultimate Psychometric Tests: Over 1000 Verbal Numerical Diagrammatic and IQ Practice Tests
Detox Your Mind
Who Wants To Be a Millionaire? Junior Quiz Book
Spy School: Are You Sharp Enough to be a KGB Agent?
The Big Book of Su Doku
1000 Playthinks
Improve Your Brain Power: 400 Games, Puzzles and Brain Teasers to Unlock Your Mind
Colourful Lateral Thinking Puzzles
New Burlington Books Unsolved Mysteries
The Joy of Mathematics: Discovering mathematics all around you
The Powerscore LSAT Logic Games Bible: 2020 Edition. an Advanced LSAT Prep System for Attacking Any Logic Game, Updated for the Digital Lsat. (Powerscore LSAT Bible)
Elastic Numbers: 108 Puzzles for the Serious Problem Solver
Where's Wally? The Magnificent Mini Book Box: 1
Mindbenders: Brain-Boggling Tricks, Puzzles & Illusions (Dk General Reference)
