ON THIS LINK

Mr Gray was smart enough to realise two things; firstly that Lulu have made the mechanics of book-making so cheap and easy that you can move straight to the physical form of the thing as soon as you want. The best way to write a book is bundle all your notes and rough thoughts together and stick them in a book. Then carry that around, make amendments, even invite other people to do the same, until you fancy making another version. And one day, who knows there'll be a definitive 'finished' version. But maybe there never will be.