I've never read a good book on the subject.
What I do to maintain my own self esteem is set small goals that I know I can reach and then do what's necessary to reach them. It's a long, slow process, but it works. If you set a goal of at least one thing you want to acomplish today, this week, this month, and maybe even this year, you will feel better about yourself when you look back and see that you have acomplished these goals.
