Norman D. Willis

No biography available.

Works (6)

Cover of The world's biggest book of brainteasers & logic puzzles

The world's biggest book of brainteasers & logic puzzles

Cover of Mystifying logic puzzles

Mystifying logic puzzles

Cover of False logic puzzles

False logic puzzles

Cover of Mensa logic puzzles

Mensa logic puzzles

Cover of Brainstrains

August 28, 2002

Cover of Accros de jeux de logique

Accros de jeux de logique