Though this is the first book, it was the 4th Reacher book I've read. It doesn't seem to matter particularly what order you read them in, you get the gist. But this is an incredible introduction to a character, Reacher is like a mix of my favorite characters. Macleane, Bauer, Holmes and any character played by Woody Harrelson! Not just the main character, but also the other characters have such a huge part to play, everything has a history! I actually couldn't recommend a better series, and a better way to start!