books by subject
Brain Teaser Games
The Times MindGames Word Puzzles and Conundrums Book 4: 500 brain-crunching puzzles, featuring 5 popular mind games (The Times Puzzle Books)
Pocket Posh Sudoku 13: 100 Puzzles
The Strange & Infinite World of Numbers
The Sun Two-Speed Crossword Collection 7: 160 two-in-one cryptic and coffee time crosswords (The Sun Puzzle Books)
Fantastic Brain Games
The Must Have 2016 Sudoku Puzzle Book: 366 puzzle daily sudoku book for the leap year. A challenge for every day of the year. 366 Sudoku Games - 5 levels of difficulty (easy to hard)
John Dunn's Answers Please (BBC Books)
Schott's Almanac 2010
Think You Know it All?: The Activity Book for Grown-Ups (Know it All Quiz Books)
How to solve sudoku: A Step-by-step Guide (52 Brilliant Ideas)
(EINSTEIN'S RIDDLE) BY STANGROOM, JEREMY[ AUTHOR ]Hardback 05-2009
The Crossword Companion (Wordsworth Reference)
The Little Book of Great Britain
So You Think You've Got Problems?: Surprising and rewarding puzzles to sharpen your mind
Which Came First? A Book of Life Cycles
The Times On This Day: Facts and trivia for every day of the year
The Telegraph Big Book of Quick Crosswords 3 (The Telegraph Puzzle Books)
The Telegraph: General Knowledge Crosswords 4 (The Telegraph Puzzle Books)
The Classic FM Puzzle Book
Norris McWhirter's Book of Millennium Records
The Official Trivial Pursuit Quiz Book: You Can't Make This Stuff Up! (Puzzle House)
The Complete Puzzle Book
A Book of Things
The World's Greatest Book of Useless Information
The IQ Booster: How to Dramatically Improve Your Performance on IQ Tests
Do Cats Have Belly Buttons?: And Answers to 244 Other Questions on the World of Science
Perplexing Lateral Thinking Puzzlers
Mystery Puzzles
CHALLENGING LATERAL THINKING
