A few books I recently finished that I highly recommend:
Both of these are by 37Signals. I had previously read Getting Real (you can read it free online). I liked its premise and decided I need a hard-copy to keep on my bookshelf. Rework is very similar to Getting Real (some of the short essays are almost exactly the same). But Rework is more focused on business topics and Getting Real is more focused on software design and development. I also recommend you listen to the interview with Jason Fried by the Startup Success Podcat (done by Bob Walsh, friend to all small software businesses)
Linchpin, Seth Godin
I enjoy Seth’s blog but this is the first book of his that I own. I really liked this book a lot. Read it to learn how your “lizard brain” may be hampering you!
Million Dollar Consulting, 4th Edition
Both of these books are by Alan Weiss. I already owned an earlier edition of Million Dollar Consulting and this new edition is well worth it. Alan has a lot of advice and guidelines that I’ve found quite helpful while building my consulting business. Thrive! is a great book that is along the lines of Linchpin: Do something! Ship! Make a difference!