Stanley Donwood: It gets a bit annoying when you overhear people talking shite in galleries...

For 'In Rainbows', Donwood experimented with a photographic etching technique, putting prints into acid baths with various results, explaining: "It's a sensual record and I wanted to do something more organic. It's very colourful – I've finally embraced colour! It's a rainbow, but it is very toxic; it's more like the sort of one you'd see in a puddle." WATCH