Glenn O'Neill who designed my book cover discusses the process in a piece at WeLoveThisBook. He talks about taking pieces of text and searching for matching images and ideas. I really enjoyed reading about the process and especially seeing some of the other versions of the cover (see below).
This week the American cover has been finalised. It's very different from the English cover - brighter and funnier too, somehow, perhaps hinting that it's not a sad book. I really like it.