Cindy Sherman is the conceptual portrait photographer with herself as sole subject, lauded by Billy Bragg in Cindy of a Thousand Lives. At once photographer, model, make-up artist, hairdresser, stylist and wardrobe mistress, she’s also a dab hand with a ball of potato and flour. ‘This step is more complicated to explain than it is to execute,’ she warns when describing how to use a floured fork to make her gnocchi crescent-shaped and ridged – the better to catch extra sauce. Her images of film-noir starlets, porn models, hitchhikers, clowns, socialites and Old Master milkmaids all require viewing rather than explaining. They can be funny and grotesque, disturbing and nostalgic – and frequently sunburned.