Instruct: Classify a given review as either positive or negative.
Query: Aimed at a really low level

I tried using this book for an undergraduate computer security course I teach. I found the level pathetically low, and found only a few scattered sections to have any value for someone with a basic knowledge of computers (like what a first-year student in CS would know). It seems the authors have aimed their book at a general audience; if you want something at all technical, look elsewhere.