Just completed Robert Greene's "The 48 Laws of Power"

Of all the self-development books I've read, this is the best so far.

I like the way each "power" is backed up by linking it to anecdotal evidence and events from history.

So you're getting solid, helpful information that you can use in your life, whilst also learning cool shit about history, some of which has even encouraged me to download further reading about some of these interesting real-life historical figures. A a lot of whom I actually thought were fictional.