Wear your clothes backwards and learn cartooning: artists share lockdown tips

From Martin Parr’s indoor photography challenge to Martin Creed’s guitar-playing tutorial, artists are showing how the coronavirus needn’t mean an end to creativityThe doors of the world’s finest museums, galleries and art fairs may now be firmly closed for who knows how long. But art can still reach us in dazzling detail, via the now essential gateway of social media. Large organisations were the first to get involved, with MoMA in New York and the National Portrait Gall