You can read this book on a few levels. It's an interesting and entertaining read; you can go through it for enjoyment, with a bowl of popcorn, and it'll be satisfying on that level. It's a good analysis of some historical events, looking at what happened and why, if you're into history. Some of the events I'd heard of before, and some not, so there was both the pleasure of familiarity and the interest of novelty. And it's a good textbook on how and why large-scale problems happen, and how they can be prevented, including some common fallacies in our thinking/planning/organization that makes these large-scale disasters more likely to happen.
My one complaint is that this is a very thin book for a trade paperback. And it has a sequel, or a part two, or whatever you want to call it. If the sequel is just as thin, they they should've been a single volume, making them not only easier to read as a related whole, aside from the fact that one thicker book would be (or certainly could be) a lot cheaper than two thin ones. Over on the fiction side, some publishers are starting to break up novels and sell them as "serials" -- basically chunks of novel sold separately -- for no reason that comes to mind except that they can make more money on the whole work that way. Maybe it's made me paranoid, but that's what this looks like.
Still, I enjoyed the read and will probably get the second book eventually. I'm kind of hoping there aren't any more after that, though.