Robert Holden, Ph.D., is the Director of Success Intelligence and The Happiness Project. His innovative work on success and happiness has been featured on Oprah and in two major BBC TV documentaries, The Happiness Formula and How to Be Happy, shown to more than 30 million television viewers worldwide. He is the author of ten best-selling books, including Success Intelligence, Happiness NOW! and Shift Happens! He lives with his wife and daughter in London.