Favorite books on Marketing?

[akw]

Let's start a list of your favorite books on marketing. Perhaps we can turn this into a list that can be promoted to the InsideSpin website.

[mike.ziarko]

Coming from a sales background, I was unfamiliar with in-depth marketing until I discovered Seth Godin. Now I can't put his books down.

I absolutely loved his book Tribes and Small is the New Big.

I'm currently reading Linchpin - Are you Indispensable?
I also hear All Marketers are Liars and Permission Marketing are marketing classics.

Mike