Ms. Rowling was in attendance and said:
I'm delighted that Harry Potter continues to give so much pleasure to adults and children, and I'm honoured to receive this award. I am enjoying writing the last book in the series and it's coming along nicely.
Half-Blood Prince was up against Jamie Oliver's Jamie's Italy, Sharon Osbourne's My Autobiography and Jeremy Clarkson's The World According to Clarkson.
You can see some pictures here courtesy of Getty Images.
Congratulations Ms. Rowling.