128 books • 17 series
Juegos de Ingenio II
Mensa - Logic Brainteasers
Victorian Conundrums
Mensa Junior Activity Pack
Juegos de Ingenio 1
Mensa IQ Workbook
The Second Book of 100 New Crosswords
Mensa - Crossword Puzzles
Bumper Quiz Book for the Family
The Hutchinson Puzzle Book (Helicon general encyclopedias)
How to Succeed with IQ Tests
Bumper Quiz Book for Kids
Mensa Mind Games Pack
100 Modern Crossword Puzzles
100 New Crossword Puzzles
The Mammoth Book of IQ Puzzles (Mammoth Books)
Improve Your IQ
The Complete Guide to Word Games and Puzzles
Ken Russell Puzzle Challenge
Classic Brain Puzzlers
IQ Firepower
IQ Powerplay
IQ Hotshots
The Great IQ Challenge