Fernand Léger drew from popular entertainment and working life to make Cubism less inaccessible

The new Pieter Bruegel exhibition in Vienna really is a once-in-a-lifetime artistic experience

A new Barbican exhibition explores how two were often better than one in the creative process

Samuel Courtauld’s Impressionist paintings can now be seen beside those he bought for the nation

The Royal Academy’s summer bunfight has long ceased to be the place for new waves to emerge

Edward Bawden’s versatility has  masked his huge contribution to 20th-century British art

US artists of the interwar years can at last be appreciated in a revealing Oxford exhibition

Murillo has gone out of fashion but an exhibition of his portraits may help to restore his reputation

Andreas Gursky’s disquieting yet sublime photographs form the first show at the refurbished Hayward

A new exhibition at the National Gallery displays an extraordinary range of monochrome works