Raymond Blum

GCP in Action

GCP in Action

2025

Mathamazing

2002

Mathemania

2001

Mathemania (Giggle Fit)

2001

Trucos Matemagicos

1999

Festival de Ingenio

Festival de Ingenio

1998

Matemagia - Trucos Magicos Gar

Matemagia - Trucos Magicos Garantizados (Ediciones de Mente)

1998

Mathamusements

1997

Giant book of math fun

1994

Math Tricks, Puzzles and Games

1994