Bloomsbury, the publisher of Paul Hollywood’s new book, A Baker’s Life, is predicting it will be one of the bestsellers this Christmas, thanks in part to the successful reinvention of The Great British Bake Off.

Hollywood’s latest book hits the shelves next Thursday – two days after the final of the first series of Channel 4’s new-look Bake Off is broadcast.

“It will be huge, no doubt about it,” said Nigel Newton, chief executive of Bloomsbury. “Cookery books, both from the brilliant Paul Hollywood and other major chefs, have been a major strength of the industry over the last decade.”

Channel 4 poached Bake Off from the BBC in a £75m three-year deal. A spin-off show starring Hollywood, also called A Baker’s Life, begins broadcasting in November – perfect timing to promote his new book in the run-up to Christmas. He was offered the four-part show as part of an estimated £1.5m three-year deal to keep him with the Bake Off franchise.

Hollywood was the only one of the BBC’s original lineup of fellow judge Mary Berry, and co-hosts Sue Perkins and Mel Giedroyc to make the move to Channel 4.

Newton cited cookery publishing as one of Bloomsbury’s “great strengths” – this year’s hits include Tom Kerridge’s Lose Weight for Good and Hugh Fearnley-Whittingstall’s River Cottage Much More Veg. Hollywood’s £25-a-pop Bloomsbury book How to Bake has shifted more than 200,000 copies since its publication in 2012, according to Nielsen Book Research.

Newer releases by the baker have seen diminishing returns. His most recent one, The Weekend Baker, published by Michael Joseph, has sales of only 11,000.

However, Hollywood remains a star baker in the publishing stakes, having sold almost 700,000 books, worth more than £7m, in the last five years, according to Nielsen.

Bloomsbury, which also publishes the Harry Potter books, reported strong first-half trading, with revenues climbing 15% to £72m in the six months to the end of August, as JK Rowling’s boy wizard franchise shows no signs of slowing down, 20 years after the first book was published.

The franchise saw a 40% sales revenue surge in the first half, driving a 33% surge in revenues in its children’s publishing arm as special editions and spin-offs continue to prove popular.

The publisher is also benefiting from George Saunders’s Man Booker prize win for Lincoln in the Bardo, with Newton saying that it has seen a “tremendous boost in sales” since the award last Tuesday.