The Professional Mentalist's Officers Manual by Richard Osterlind Production there was only one instrument

there was only one instrument per device

Color Changing Straw: Easy to make and do

As he begins the final segment of the show

Introduction to roughing spray

The Professional Mentalist's Officers Manual by Richard Osterlind Production there was only one instrumentWelcome to the higher ranks of mentalism! The Professional Mentalist's Field Manual has become one of our most popular offerings with mentalists worldwide. Its practical advice for professionals has been called invaluable for the working performer! Now we have taken this training one step further with The Professional Mentalist's Officers Manual! This volume picks up where the first left off with even more valuable and hard hitting rules of engagement