It is rare to pass a commute without catching a flash of bright blue or yellow amidst sleepy faces and monochrome suits. Such is the success of Jonas Jonasson’s runaway hit, The Hundred-Year-Old Man who Climbed Out of the Window and Disappeared and the recently published The Girl Who Saved The King of Sweden. We are all familiar with the iconic result, but what of the inspiration behind these quirky and charming covers? Designer Jonathan Pelham talks us through the creative process: