Peter is one of the UK's most successful entrepreneurs and became a television celebrity through his appearances on the BBC Two show Dragons' Den and on his American television show American Inventor. He is Chairman and Chief Executive of Phones International Group, steering and driving them forward as one of the UK’s most successful and fastest-growing telecommunications businesses. He is also involved in a number of additional business and media activities. His book Tycoon, published in 2007 by Hodder & Stoughton, is a UK bestseller. He was a keen tennis player as a teenager, and earned money by giving tennis lessons and set up his own tennis academy at the age of 16.