Penguin profits slump, ebook revenues up 33%

Profits at the book publisher Penguin slumped by almost 50% in the first six months, thanks in part to the runaway global success of EL James's Fifty Shades of Grey, which is published by a rival, Vintage Books.

The runaway success of Fifty Shades and The Hunger Games helped cut sales at Penguin by 4% to £441m and its adjusted operating profit down 48% to £22m.