16 books • 5 series
Stories In The Bozeman Trail- The Untold Story Of Red Cloud, An American Legend
Sustainable Recovery
500 Optical Illusions
Colorful Puzzles for Wise Eyes
A Little Giant® Book: Optical Illusions (Little Giant Book)
Brainstrains(r) Eye-Popping Puzzles (Brainstrains)
Classic Optical Illusions
The Who, What & Where Book of Brain Bafflers
Giant Book of Optical Puzzles
Giant Book of Pencil Puzzles/Giant Book of Optical Puzzles
Optical Illusions (Little Giant Books) (Pocket Puzzlers)
Book of Optical Tricks (Little Giant Books)
The Little Giant Book of Optical Tricks
Fun with Optical Illusions (Mini Masters S.)
The Little Giant(r) Book of Optical Illusions
Little Giant Book of Optical (Little Giant Books)