This week we pay tribute to three artists who have made us think about polka dots.
"Polka dots are a way to infinity." –Yayoi Kusama
Hirst is a controversial figure who is as much (and some would argue more) an entrepreneur as an artist – his conceptual art, which includes a dead shark in a case and a diamond-encrusted skull, has sold for millions. Love him or hate him, he's probably managed to get you to... we'll avoid the obvious pun. Currently in the works: a painting with one million spots.