Fire in the Hole, and other stories - Elmore Leonard,
I've not yet got to the title story which is what the first episode of Justified is based on. There's also two books called Pronto and Riding the Rap which are older and have Raylan Givens back in the days when he still worked in Florida, and a third book called Raylan which Elmore wrote after the sucess of Justified.
Aparently a lot of the episodes are based on parts of lots of his stories so I'm probably going to start reading more of his stuff to spot where inspiration was taken from, like reading Sir Arthur Conan Doyles, Sherlock stories while watching the modern series.
It also fills tha gap between new episodes of both quite nicley.
"Don't blow my brains out, the Japanese want to buy them."