Books about marketing

These are the best books I’ve found about marketing so far. I’d love to hear about any others you find.

Let’s Get Visible
by David Gaughran
This is an invaluable book for anyone selling books through Amazon. It explains how sales rank, popularity lists and other extensive marketing tools built into the Amazon site work and how you can make the most of them for your book. I’ve tried his ideas, and they definitely work.
Buy ebook from Amazon

Tweet Right – The Sensible Person’s Guide to Twitter
by Nicola Morgan
I’m still not 100% convinced that Twitter is as useful in book marketing as some people say it is. However, tweeting is a skill authors are currently expected to have and, if you haven’t done it before, this guide will help you get started.
Buy ebook from Amazon