[Ducky]

So, I recently picked up a book by Neil Gaiman, it was American Gods - Authors preferred version (has something like 1400 more words than the regular version). This was my first book from him and I absolutely loved it. I can easily see him becoming one of my few favourite authors. It's not often at all I fall for an authors work this fast.
What I'm asking is where to go now. What are his most iconic or well known books, and the ones I should consider getting next?

And I guess General Neil Gaiman discussion as well >_<