Three to see: London

Want to know which artists Van Dyck, Matisse and Lucien Freud collected? Painters’ Paintings (until 4 September) at the National Gallery sheds a light on the collections of eight painters, some of whom collected each other. The show, which opened yesterday (23 June), includes Picasso’s Portrait of Dora Maar (1942), which he sent to his rival Matisse as a get-well present. If the British summer fails to materialise, there is always the South London Gallery’s Under the Same Sun: Art from Latin America Today (until 4 September). Serious themes are contrasted by playful works and colourful palettes, including Federico Herrero’s site-specific floor painting in a nearby playground. If getting Ivan Turgenev, Fedor Dostoevsky and Leo Tolstoy into a room together is your idea of a fun (literary) afternoon, don’t miss Russia and the Arts: the Age of Tolstoy and Tchaikovsky (until 26 June) at the National Portrait Gallery, which closes this weekend. The exhibition is a rare opportunity to see some of the best portraits from Moscow’s State Tretyakov Gallery, which is lending part of its collection in a cultural exchange marking the 160th anniversary of both museums.