http://www.teamsteverhyner.com/8-self-improvement-skills-to-learn-that-have-lifelong-benefits/

In my opinion, self-improvement should be a life long pursuit. I don't believe you can ever "graduate" from self-improvement school but you can come close. Work on yourself then you can help others. I don't even want to think of how many self-improvement books have been written but this article has a few good tips that you'll read quicker than any book.