I must agree with what most of the other reviews are saying, i.e. the book itself is good, it contains a lot of information, it explains most of the things quite comprehensibly (if you manage to keep attention) and with accordingly picked examples, although it sometimes behaves more like an overview of the field than a proper introduction but alright, it is fairly difficult to stick to the fine line between the two, but what the real problem seems to be is the conversational style that, of course, makes it easier to read readability-wise but makes it difficult to keep your attention through all the fluff and extract the important stuff from it. It would work wonders as a lecture but it is not great in text.
If you have experience with extracting information from a longer text, I can totally recommend this book, it is great for examples and case studies, but if not, you are, let's say, just starting at college and would prefer something more straight-forward, this might not be the book for you. I would, however, recommend keeping this publication in mind for future reference.