Outsider Art is a pretty catch-all term. It’s been used to mean folk art, or art from the marginalised or, increasingly, just any kind of art that hasn’t made it into the mainstream galleries. Whatever the meaning we seem to have an insatiable appetite for the stuff – the Museum of Everything has made a career from putting normally unseen art in public places – but it’s generally been British and American artists contributing. Well no more: the latest in a line of excellent exhibitions at the Wellcome Collection brings together a wonderful kaleidoscope of Japanese outsiders. We particularly liked the cardboard robots but whichever way you look there’s something quirky, moving or colourful.
ArtSunday April 7