OtiumSessione
Sessione
Non abbiamo ancora una biografia di Jeff O'Hare.
Pubblicato in Inglese
Mathmania
2004
Puzzlemania+ Math Mathmania
2010
Puzzlemania Superchallenge
1998
Best of Puzzlemania Mazes
2001
Puzzlemania
2003
Puzzlemania + math =
2000
Mathmania : Puzzlemania + Math
1999
Highlights Puzzlemania
2003
Yu-gi-oh: Monster Mazes
2005
Yu-Gi-Oh! Enter the Shadow Realm; Duel Challenge
2004
Yu-Gi-Oh! Duel Chaos Color and Activity Book with Tattoos
2006
Travel Puzzles and Games
2002
Time For Kids
2010
The Book of Lairs II
1987
The Big Book of Winter Fun
2002
Secret Codes and Hidden Messages
1997
Searchin' Safari
1999
Puzzlemania Superchallenge Book 4 (Puzzlemania Superchallenge)
1999