It is an industry like no other, with profit margins to rival Google – and it was created by one of Britain’s most notorious tycoons: Robert Maxwell. In 2011, Claudio Aspesi, a senior investment analyst at Bernstein Research in London, made a bet that the dominant firm in one of the most lucrative industries in the world was headed for a crash. Reed-Elsevier, a multinational publishing giant with annual revenues exceeding £6bn, was an investor’s darling. It was one of the few publishers that had successfully managed the transition to the internet, and a recent company report was predicting yet...