 Whilst Barnes & Noble did not give a reason for ceasing Nook sales in the UK, commentators attributed the decision to declining sales.On March 15, 2016, Barnes & Noble announced it would close the Nook App Store and Nook Video, probably because Google's Play Store, which runs on Barnes & Noble devices, has been far more successful.In the UK, those who have bought, respectively, e-book or video content will need to open accounts with other providers in order to not lose the content.