Michael J. Gelb is a pioneer in the fields of creative thinking, executive coaching, and innovative leadership. He is a fifth-degree black belt in aikido and a gifted teacher of tai chi and the Alexander Technique. He is also a professional juggler who performed with the Rolling Stones. He is the author of seventeen books — including the international bestseller How to Think Like Leonardo da Vinci — which have been translated into 25 languages and sold more than one million copies.