When I started reading this book I was a bit disappointed, as it didn't live up to its own hype. But after realizing that it was in fact an excellent primer for the subjects that they cover (see title and subtitle).

It is very simplistic, but it gives a good overview of the absolute basics, even though their recommendations on how to handle the subjects, are so naive that they are in practice useless.

Read for what it is, an OK first introduction book.