If you fancy a quick yet in-depth guide to the role of the photograph in arts culture today, get down to this excellent Tate Modern exhibition that covers the whole of the 20th century. Some of the pictures on show represent the sort of thing that infuriates punters, like the shots of Yves Klein’s public demonstrations of creating huge abstract canvasses by using curvaceous naked women as his paintbrushes. Others are magnificent by whatever standard you judge them – Masahisa Fukase’s underwater selfies, Cindy Sherman’s mischievous stills from non-existent films and a couple of Man Ray’s brilliantly revealing portraits of Marcel Duchamp’s alter ego Rrose Selavy all spring to mind. There are several hundred items on display. Love them or hate them, I guarantee you’ll be fascinated.