His earlier collection of short stories, Peek, is also well worth the read. It's funny and dark, literary and absurd, full of vignettes as well as touching flash fiction stories. It's full of the taboo and what people tend not to say - not out loud, at least.
For a full review of the book, check it out here at Bewildering Stories. While the stories are probably not for the faint of heart or readers who find themselves easily offended, it's a great read for the rest of us. I'd definitely recommend it!