This is a collection of Race Williams stories (and a few proto-Race characters) that were originally published in Black Mask magazine, in the formative days of noir. Race Williams (and his writer) are often overlooked for their contribution to the genre, but this collection does a good job amending that.
As a character, Race is not as witty or charismatic as Hammett's or Chandler's heroes, but he never claims to be. The character prefers action, and each story is guaranteed a few shootouts. The character is a little thin, admittedly. All he seems to care about is money, and he spends it freely, although it is unclear what he spends it on. He doesn't seem to have any interests, aside from shooting villains dead. If he starred in novels, his schtick would get old quickly; since he only has short stories, though, he just comes across like a hero in a dumb action movie --- and I mean that in a "refreshingly uncomplicated" sort of way.
These stories are best enjoyed sporadically. As I said before, the character is fairly one-note, but the stories are entertaining. It's an interesting look at pulp/noir before any of the big characters shaped the scene.