Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Agree with the others

Amazingly lazy effort. Some of the data, like basic security concepts, are universal (the definition of a "threat" is the same, regardless of OS) but after that this book is... well, saying it's a "retread" is being nice.The screenshots in this book even still refer to Windows 2000. Chapter 3 has a very nice "System Properties" screenshot that says "Windows 2000, Service Pack 3". Going by that, it's not even completely up to date on Windows 2000.If you're looking for basic security concepts, this book should be alright... but there are better options (like anything Security+ related). Unfortunately, this was my first Sybex book... and will probably be my last.