J.K. Rowling is the author of the bestselling Harry Potter series of seven books, published between 1997 and 2007, which have sold over 450 million copies worldwide, are distributed in more than 200 territories, translated into 73 languages, and have been turned into eight blockbuster films. Featuring grimy casual sex, self-harm, rape and heroin addiction – not to mention vicious parish politics – JK Rowling's first novel for adults represents a decisive break from her back catalogue. But if The Casual Vacancy is ambitious in its scope and themes, it is determinedly unadventurous in its style and mode. It's a book that wrestles honourably and intelligently with big moral and political questions, but does so in a slightly clunky and convention-bound way.