I just finished reading this one and I found it to be very helpful for a person trying to find management level understanding of security, I have been working with networking and security for the last 10 years of my life and it has been very helpful to pinpoint several management aspects that technology savvy people (I prefer that over geek) usually don't follow or look at. I enjoyed the explanations, everything was very easy to read and understand, the introduction to cryptography is simply one of the best I have found out there. Again, if you are a technical guru looking for technical advice there is no much use to it in this book, OS, Networks and other practitioner level stuff are not well defined, simply mentioned for reference or examples. Another part I liked about it was the level of detail that the author had to reference the attacks and statistics, which a lot of us love to read and know about. Finally, make sure to get edition 5 of the book, I am referring to edition 4, I am sure that there is a lot to cover in a couple years regarding security and the way to go about it. I got the book from the university package so I wont be getting the new one, it's simply overpriced in my opinion.