I agree somewhat with what the other reviewers have said, but then you must take into account that there are 30+ authors here, and each one will have very different things to say and as many ways to say it. You could say that an editor should have taken care of equalizing the book, normalizing the styles, but I think that will destroy the spirit of it. It's true that there are many technologies and languages, but I don't think that is a mess, but the obvious result from putting together many great minds from different backgrounds and dealing with many different problems. It won't make you a better programmer, but I don't think that was the target of the book. This is not a cookbook or a book to teach you C++ in 21 days. This is something else. Think of it as an essay (or a collection of) or a documentary series. I still didn't read all articles, and because of the sheer variety and ample scope of the book, I will probably never read them all, but for sure I can tell you some of the chapters are also powerful motivators. With the daily corporate grind, you can get somewhat jaded sometimes with tech, but this is a foray into the joys of problem solving, the eureka moment, the pleasure of coding. For me, not a waste of time, definitely.