Photo London opens next week on Thursday 18^th until Sunday 21^st at Somerset House in central London. In its third edition, the fair has gained momentum and photography is settling into London’s annual art calendar. To accompany the fair, three exhibitions by Mat Collishaw, Isaac Julien and Taryn Simon will also open at Somerset House. Since the coming week will all be about photography, May’s gallery highlights are commercial exhibitions on the medium. Expect pleasure-seeking from a young Maisie Cousins, a look back at Renate Bertlmann’s feminist wit and timeless elegance on the nature of desire and the gaze by Isaac Julien.