Nielsen Book has launched PubTrack Digital UK, an ebook sales tracking service based on the same model that they use in the US. A set of unspecified publishers contribute their own ebook sales data, on a monthly basis, with a three-month delay. Nielsen says “we are not currently releasing the names of participating publishers. However, we can say that we have a significant share of the estimated e-book market.” The top-selling ebook in the UK for 2015 through August was Girl On the Train (566,000 units) and the No. 10 title, How I Lost You by Jenny Blackhurst, moved approximately […]