While some authors churn books out in quick succession, releasing one or two a year, others make us wait longer for our fix. When it comes to Donna Tartt, we have to wait so long between books that the only feasible approach when she releases a new novel is to savour it, to resist the urge to fly through and finish it as quickly as possible. The Goldfinch is her third book in 22 years, coming 11 years after 2002’s The Little Friend, and after such a long wait it comes with a heavy weight of expectation attached.