This is hard...not sure how to rate this one. The first half is a 13/10, it gives words to things that I do based on intuition. Which is the most valuable kind of book for experienced developers. The second part somehow feels off. It tries to add a business case to the first half of the book. But fails to explain it to people who don't have some form of business background. I heard the feedback from two other developers that they didn't get that part at all. Which is sad because if they had, it would have made the book even more valuable for them. I think Kent might need to revisit that part with some feedback from readers and can make it work. There is value in those chapters. It just needs a bit of tidying up.