He is the author of more than a dozen books in the Guerrilla Marketing series. A former vice president & creative director at J. Walter Thompson Advertising & Leo Burnett Advertising, he is chairman of Guerrilla Marketing International, a consulting firm serving large & small businesses worldwide. He lives San Rafael, California.
Bill Gallagher, Ph.D., is a speaker, sales trainer, and management consultant. He lives in Diamond Springs, California.
Orvel Ray Wilson is a speaker and seminar leader in the field of sales. He directs a consulting firm from his home in the Colorado mountains.