Former plumber Joseph Valente is one of a dozen former winners of TV's The Apprentice, having won the show in 2015. His prize was a substantial business investment and partnership with Lord Alan Sugar. His business - Impragas - was three years old when he took part in the programme. His partnership lasted for a year before he and Lord Sugar decided to stop working together. He's now masterminding a rapid expansion of Imragas. He's just published a book about his life so far: Expelled From The Classroom to Billionaire Boardroom.