Finished I Am Not A Serial Killer in one sitting... more or less. My wife and I were at a church social thing, and I skipped out to read in the foyer, so I was interrupted frequently and had to drive a little, but other than that, I powered through the book. Actually, it was more like I was 100% addicted. It was awesome. If you haven't read it, I can give the website address in England where you can buy it and have it shipped directly to you. Shipping is free. The book cost $10.00 and it is very, very much worth it. It won't come out in the states until March I think, so England is the only way to go if you want it before then.
As for the book, well, I already gushed a little, but seriously, it's the best book I've read since... wow. Having a hard time thinking of the last book that was good. I think it even beat out Hero of Ages imho, but that's probably the last book I read of comparable quality. You should own it already.