Anthony J. Mahavorick AKA Tony Robbins, pen name Anthony Robbins, (born 29 February 1960, Glendora, California) is an American life coach, motivational speaker and writer. Robbins has authored a number of books, including Unlimited Power and Awaken the Giant Within. His best known tape program is Personal Power II; other programs include Get the Edge! and Lessons in Mastery. Robbins has coached multiple world leaders, including several US Presidents, as well as Mikhail Gorbachev, Princess Diana and others.