The Grifters was first published in 1963 and I first read it in 1963. I got it off a rack in a dime store. The book was not what we call today a “trade paperback,” which is a larger format than the standard pocket-size pulp paperback, generally a book that is judged to have some literary merit; no, this was a pulp paperback, which at that time probably sold for 75 cents. I believe all of Thompson’s novels initially came out as pulp fiction. Read ’em and throw ’em away.