While the British electorate was asked to vote on a simple-sounding question during the UK referendum on EU membership in June 2016. the issues at play were extremely complex. In order to help potential voters make sense of the debate. the authors ran a free Massive Open Online Course (MOOC) on the referendum in the weeks leading up to the vote. https://www.nacrack.com/flash-deal-Diamond-Painting-Zee-en-strand-special-find/