48. Jamie Oliver

Job: TV chef, independent producer Age: 36 Industry: broadcasting, publishing Worth: £106m New entry It was another big year for the multimillionaire TV chef and social campaigner, whose spin-off book from his Channel 4 show, Jamie's 30-Minute Meals, became the fastest-selling non-fiction book ever . Like all the most powerful on-screen talent, Oliver runs his own production company, Fresh One . Boosted by his TV shows, books, burgeoning restaurant chains and Sainsbury's advertising contract – which will soon come to an end after 11 years – Oliver is estimated to be worth £106m . Not bad for a lad who left his Essex secondary school with two O-levels. Oliver went back to school for his latest Channel 4 series, Jamie's Dream School , and took his food campaign to the US with Food Revolution. The first series on ABC won an Emmy; the second, hampered by a lack of co-operation from the authorities, was axed mid-season. No TV presenter has turned ratings into political influence quite like Oliver. His school dinners campaign – which prompted his last appearance in this list five years ago (when he was worth £20m) – forced the Labour government into an historic U-turn. He calls Michael Gove, the current education secretary, "Govey". But then, he would, wouldn't he? "The public is still king," said Oliver . "So what I try and do is shit stir." Plus make some decent recipes. Some of which you can make in 30 minutes . Oliver's latest Channel 4 project sees him turn to traditional British dishes with Jamie's Great Britain . Plus an accompanying recipe book , of course.