In my pernal experience have found motiational audios and videos (like The Secret) to by far the most effective given howthe brain process's information.
I would recommend recording your vision and maor targetfor your life using an audio program and combining your voice with a motivational song you have.
Their are numerous programs out there that can do this for free lie GoldWave.
Hope this helps.
P.S. If yo really want a good book then "Think and Grow Rich" by Napoleon Hill is in my opinion th undisputed champ of personal growth, goal achieving, business success, heck I think he talks about every topic of personal development under the sun.
I agree with Dorian about "The Secret". I haven't read the book, but watched the documentary, and it was good.
Right now, I am reading "The Seven Minute Difference" by Allyson Lewis. It teaches you how ordinary changes make extraordinary difference in your life. Go ahead, and give this book a shot.
You can also read "The Automatic Millionaire" by David Bach. So, here are three books from my side:
1. The Secret
2. Seven Minute Difference
3. The Automatic Millionaire
I agree that Rich Dad, Poor Dad by Robert Kiyosaki is a great read and motivational tool.
I would also suggest Dale Carnegie's How to Win Friends and Influence People.