Logic & Brain Teasers

Bletchley Park Codebreaking Puzzles

Whodunit Mysteries

Food for the Mind: Or, A New Riddle-book

The cross word puzzle book

Riddles Read

Classical Enigmas, Adapted to Every Month in the Year

Puzzlemaster Deck: 75 Brain Twisters

Pictured Puzzles and Word Play

The Game of Go: The National Game of Japan

Extreme Brain Workout