Norman D. Willis

14 works on record

Works

Little Giant Encyclopedia

2008

Juegos De Ingenio / The Little Giant Book of Logic Puzzles (Aprende Y Practica / Learn and Practice)

2003

Brainstrains

2002

The Little Giant Encyclopedia of Logic Puzzles

2000

Mystifying logic puzzles

1998

False logic puzzles

1997

Challenging false logic puzzles

1997

Tricky logic puzzles

1995

Amazing logic puzzles

1994

The world's biggest book of brainteasers & logic puzzles

Accros de jeux de logique

Mensa logic puzzles