Author’s remix of detail of Four judges in heavy wigs, 1758. Etching by William Hogarth. Source: Wellcome Collection, Public Domain Mark.Late last November at the Court of Appeal in London, Lord Justice Arnold made a significant ruling on copyright and the threshold of originality in UK law, in the case THJ v Sheridan1. Although the case concerned the copyright protection of graphical user interfaces (GUIs), its impact is likely to be felt in other categories. This post examines the implica...