Richard Tiller has spent the past four decades in the business world as a manager and salesperson, and as a trainer, coach and author serving people in management and sales. He has...показать большеRichard Tiller has spent the past four decades in the business world as a manager and salesperson, and as a trainer, coach and author serving people in management and sales. He has also been a Bible teacher for the past three decades. He lives with his wife, Christina, in Vienna, Virginia.показать меньше