"Overcoming Procrastination" by Albert Ellis and William Knaus
This is a classic in the procrastination field. It's based on Cognitive Psychology - a school of psychology which Albert Ellis founded. I never read it, but I have an idea of the approach because I used to go up to the Albert Ellis Institute on Fridays for the public demonstration.
I have a cassette tape of a mini-session I had with Albert Ellis himself (96 years old at the time) talking about my procrastination problem.
I cherish the tape, but the session didn't change my procrastination. Maybe I wasn't trying.