Ithell Colquhoun

Hettie Judah on five spirit mediums, political agitators, self-taught outsiders or surrealists that ‘bite back’ in Cecilia Alemani’s Venice exhibition

From an exhibition of Francis Bacon’s ‘beasts’ to Terrence Malick’s film on the life of Christ, these are the top picks for the year

Tate has acquired 5,000 works by the late surrealist artist and writer