One of the greatest world authorities in management and strategic planning. Along with Peter Drucker, Stephen Covey and Jack Welch he is considered one of the most influential business leaders worldwide. He is exceptionally talented and assiduous. He published over 300 programmes in the world. His seminars were attended by more than 4 million people in 53 countries, including managers and executives at the leading companies across the world. He is the author of 42 books translated into 35 languages, including worldwide bestsellers "Maximum Achievement", "The Psychology of Selling" or "Turbostrategy".