This educational but fun video from CGP Grey explains the virtues of the Single Transferable Vote (STV), the version of electoral reform most favoured by Liberal Democrats.
Watch and enjoy:
John Stuart Mill was an early advocate for the use of STV, praising it in the nineteenth century. Alongside STV’s use in Northern Ireland (for all elections save Westminster general elections), it is also used for local government elections in Scotland. A route for councils to switch to STV for local elections in Wales has also been created, although so far none has.