Books by Raymond Blum
GCP in Action
GCP in Action
Mathamazing
Mathemania
Mathemania (Giggle Fit)
Trucos Matemagicos
Trucos Matemagicos
Festival de Ingenio
Festival de Ingenio
Matemagia - Trucos Magicos Gar
Matemagia - Trucos Magicos Garantizados (Ediciones de Mente)
Mathamusements
Giant book of math fun
Math Tricks, Puzzles and Games