Fiction

Excellent choices...

If you like Bosch & Co, and haven't yet, go check out Robert Crais as well.

He shares the same Los Angeles with Connelly. Their characters sometimes cross-over, unnamed but obvious from the descriptions, into each others books from time to time.

http://harrybosch.wikia.com/wiki/Elvis_Cole covers one direction. I don't remember off the top of my head which Crais book Bosch appears in.

Connelly and Crais are buds. Lee Child, too, although he lives on the other side of the world. No Reacher sightings in the Connelly/Crais opus yet, though.

At Bouchercon several years ago, one of the most attended sessions was Robert Crais interviewing Lee Child. I asked the question they both kinda hate, because it is so common. But irresistible with them both on stage: "One on one, who wins? Jack Reacher or Joe Pike."

Child said, "Hard fought, but Reacher."

Crais said, "It would never happen. They would always be on the same side."

He then took a couple of beats and then mock-whispered to the 500 of us: "But Pike would win.