87 books • 13 series
Baffling Brain Teasers (Ward Lock Test Your Intelligence S.)
Brain Busters (Test Your Intelligence S.)
E.E.C. Quiz Book
Mensa Book of Enigmagrams
Children's Challenging Brain Teasers
A First Mensa Puzzle Book
Classic Puzzles by the Mensa Puzzle Experts
IQ Test Book
The Mensa Challenge
Take the I. Q. Test (Test your intelligence)
Junior Mensa Puzzle Book
The Mensa Book of Word Puzzles (Corgi books)
The Mensa Puzzle Book
Take the I. Q. Challenge (Take the IQ challenge)
The Mensa General Knowledge Quiz Book