The Devil in Snakeskins is a mashup of Wild West meets a Post-nuclear and Post-Plague Apocalyptic Future, and it's a fun and fast read. It's set in the Western part of what used to be California, many, many years into the future after a nuclear war and virulent plague wiped out most of humanity. While the nukes may be gone, some sort of plague lingers and still surfaces now and again, infecting and killing down anyone who contracts it.
The people in this lawless far future apocalyptic landscape live in a simulacra of the Wild, Wild West. Six shooters, whore houses, and horses abound. The main character, known as the Professor, lives isolated in a small house in the middle of nowhere and surrounded by the books he's accumulated over the years. Unlike most of society, the Professor is an educated man -- self educated to be sure, but much more knowledgeable than the average citizen.
He has a boundless curiosity, especially about the workings of the human body. He often uses the victims of his gunslinging wrath as subjects in bizarre experiments to understand the way the human brain works. He's not shy about taking what he want, and he has the skills to back it up.
He happens to be deadly with his guns, and the fastest man around. He's not hesitant about using his skills either, or his charm to bed women, which gets him into trouble more than once. His reputation as a quick-draw gunslinger is well-deserved -- he's killed more men than he can remember.
One day he's sitting his porch writing in his journal when a man on a horse approaches. The resulting encounter sets off a chain of events that puts the Professor in reach of long sought-after revenge against the man who killed and raped his mother... and shot the Professor when he was a boy and left him for dead.
The Devil In Snakeskins is graphic in spots, and not for younger readers. At a mere 103 pages in length, it a quick read, but so stuffed with detail and action that it seems much longer.
If you're looking for a fast, fun read, I highly recommend it.