At London Book Fair's Quantum Conference: Stakes and Statistics

The news came from Steve Bohme, who directs UK research at Nielsen Book.

In its new partnership with the book fair's Quantum Conference, Nielsen's data and publishing's digital developments lie in logical proximity to each other.
Some 360 million units were sold, Bohme reported, in 2016-up from 353 million in 2015, with value standing at £2.4 billion, up from £2.24 billion the previous year. Bohme's material was drawn from the annual Nielsen Books & Consumers survey, which in the past fed the BookInsights conference.

"The book industry will be buoyed by these strong results and overall growth," Bohme said.