Paul Klee (1879-1940) was one of the most renowned artists to work at the Bauhaus and was both a playful and a radical figure in European Modernism. His intense and intricate work is the subject of a major new exhibition at Tate Modern from 16 October 2013, the UK’s first large-scale Klee exhibition for over a decade. Challenging his reputation as a solitary dreamer, it reveals the innovation and rigour with which he created his...