Jean-Michel Basquiat breaks US art record with £85m sale

Painting by Basquiat, who died aged 27, is most expensive at auction of any US artist, also breaking record for a black artist

Are the most expensive paintings ever worth their prices? A definitive ranking

On Monday, Modigliani’s Reclining Nude joined an elite band of artworks that have commanded over $150m at auction or private sale – but are they worth it?

Sex sells: why Modigliani’s 98-year-old hymn to lust is worth $170m

Painted through an absinthe haze as the first world war raged, Amedeo Modigliani’s Nu couché mixes modernist thrills with age-old hedonism. No wonder it still seduces