It's pretty easy to read (but disclaimer : I read the french translation) but it's still nothing more than a list of useful advices on the topic. So the prerequisite is that you have to be interested by the idea of the book in the first place. But if you are, it's nothing more than a big blog post (a good one).

Don't read the original, find a more abridged copy. The original gives too many examples for each point.