If you or your family have a passing interest in popular culture it’s highly likely that there’s some Stanley Donwood artwork in your house – even if you don’t know it.

The 50 year-old artist has designed every Radiohead album cover since The Bends in 1995 – albums that have sold around 30 million copies between them – as well as the distinctive book jackets for the perennially best-selling nature writer Robert Macfarlane. Add to this the artwork for Glastonbury Festival and there can’t be too many shelves, drawers or bedside tables, or indeed Kindles or computer streaming histories, in the land that remain un-Donwooded.

It’s not a bad feat for a former graffiti artist from Colchester who happened to crash on Thom Yorke’s floor while busking his way around the UK as a fire-breather in the early Nineties.

It speaks volumes about Donwood’s restless creativity that he can successfully create enduring images in the worlds of music, books and festivals, and much more besides. “I still don’t even know what art is,” he insists when I meet him. That’s either false modesty or his anarcho-outsider streak coming to the fore. Shaven-headed with one of those stretch-lobe ear piercings that – appropriately – screams ‘Nineties street performer’, Donwood hardly cuts an establishment figure. But one gets the impression that Donwood revels in his outsider status.