Which book should Neil Gaiman put online for free?

Breaking cover from my paternity leave again with an important bit of news: Neil Gaiman's publisher HarperCollins have given him the green light to do a free (as in beer) web-release of one of his books and Neil's running a poll to see which one he should put online -- go vote! They'll leave it up for a month and track sales -- if the experiment succeeds, they'll do more.


What I want you to do is think -- not about which of the books below is your favourite, but if you were giving one away to a friend who had never read anything of mine, what would it be? Where would you want them to start?

Link

(Thanks, John!)