Art: Laura Cumming's 10 best of 2020

Our critic’s picks of the year, from blockbuster shows to an essential virtual tour, the Arctic to artichokes…Music: Kitty Empire’s 10 best of 2020The Observer critics’ review of 2020 in full1. Artemisia
National Gallery, London; October-24 January 2021 (temporarily closed)
Non-stop theatre from the magnificently original and dynamic Italian baroque painter Artemisia Gentileschi, who seems to live inside every role she depicts: lover, outraged victim, nation-saving heroi