I read two of these last year and I'd recomend both, but I wanted to give my two cents on them.<p>The Phoenix Project: I really enjoyed reading this, but it's told as a story about fictional characters working at a fictional company, which I didn't expect. Because of the way it's written, some other people I know who read it found it a bit too fluffy. Also, from what I've heard, it's pretty much an IT focused version of The Goal by Eliyahu M. Goldratt. The Phoenix Project focused more on IT than software development, but there's also a sequel called The Unicorn Project that is supposedly more focus software development and dev ops.<p>An Elegant Puzzle: There's a ton of good stuff in here, but it felt a bit like reading a textbook or a white paper. Larson's writing style is really dense and dry. I found myself reading a paragraph or two and then needing to take time to digest what I had just read, which made it a really slow read.