The Exceptional Sale

Collecting guide: 10 things to know about Jean Royère

Contemporary women artists who meet the moment

New media artist ThankYouX: ‘Creating NFTs gave me that same feeling I got when I went out at night to paint the streets’

Harry Seymour

What I’ve learned: Colin Kemp, doorman at Christie’s in London

The Einstein-Besso Manuscript: the only surviving work detailing the genesis of general relativity in private hands

‘Phenomenally rare’: one of only 16 complete Ming dragon carpets known to exist

Virtual tour: Classic Week at Christie's Paris

Collecting guide: Old Master prints

Collecting Guide: Lalique glass