Picked this collection up from Uncle Edgar based on S.A. Corey's article for the NYT Book Review. Our detectives are Grave Digger (aka Digger Jones, the cool one) and Coffin Ed (the temperamental one). These guys are smart, improbably good shots with their custom revolvers, and they mete out what justice they can for the Black folks of Harlem.
The stories are a melange of sex, violence, and wit ("The Crazy Kill" could either describe the kill or be its own sentence). On the way, Himes surveys race relations and Harlem culture, with a gimlet view of those in power, whether they're white cops or Black preachers. The language is unusually salty for crime fiction of its time, with Himes somehow substituting the more offensive epithets "mother-r****" or "sister-r****" for the more jejune "motherf*****." Depending on your point of view, the Detectives also do admirable or detestable work subverting search and seizure laws---like many cops, they know *exactly* where the line is and what they can get away with.
Of the four novels, Cotton is the best (five stars on its own) and Rage is next (five or nearly). Real Cool Killers has a funky juvenile vibe, and The Crazy Kill gets a little too complicated for its own good (four stars or thereabouts for both). Even with the body count, this crime writing is gritty but not grim. Recommended for all crime fiction fans and anyone who likes their pulps better than fly.