Turner : The Secret Sketchbooks review – the sheer number of pornographic drawings is a big shock

JMW Turner left behind some 37,000 sketches when he died, many of which have rarely been seen. Do they – including a huge collection of explicit sketches – reveal truths about the elusive man? The hook for Turner: the Secret Sketchbooks is meant to be that many of the 37,000 sketches left behind (…)