Bloomsbury Publishing has doubled its full-year revenue on the back of strong sales from the final Harry Potter book.

The publisher reported full year sales of £150.2 million, up from £74.8 million last time. Pre-tax profit rose to £17.7 million from £5.2 million last time. Shares held steady at 166p in early trade.

The company said it is well positioned in a post Potter era as the final book in the blockbusting wizard series was published last year, and said the first quarter had started strongly for the group.

'We have reduced overhead costs, are successfully developing new business areas in specialist publishing, and have a strong pipeline of titles,' Nigel Newton, chief executive said.