Previously unseen drawings by Moomins author Tove Jansson to go on show in London

Exclusive: Exhibition focussing on Finnish writer and artist’s illustrations will include original art from her first Moomins book The Moomin books about lovable trolls with hippopotamus snouts who live in harmony with nature are a global publishing phenomenon, having sold up to 30m copies since the Finnish artist and writer Tove Jansson wrote and illustrated them between 1945 and 1977. Now previo