Jamie Oliver's new book sales finally overtake Rowling's The Casual Vacancy Oliver has consistently achieved colossal sales for his books with his 30-Minute Meals volume becoming the biggest seller of 2010, and his Jamie's Great Britain doing well last year. If he were to top the Christmas chart this month, it would be the third successive year in which he has done so. To date Oliver's book - which ties in with his latest Channel 4 series - has sold 373,943, with Rowling's novel notching up 316,690 sales. Tom Weldon, the chief executive officer of Oliver's publisher Penguin UK, said: "We are thrilled by the success of Jamie's 15-Minute Meals. It is testament once again to Jamie's incredible creativity, hard work, and passion for bringing good, healthy food to as many people as possible. Despite the impressive sales for both books, they have been dwarfed by the publishing phenomenon of the year - 50 Shades Of Grey. EL James's first novel of her trilogy sold 665,000 copies in the space of just seven days in July. Oliver's 30-Minute Meals title sold in excess of 1.5 million copies and topped the best-seller chart for more than half a year.