What is the best book on the science of overcoming procrastination?

I don’t know quite what you mean by the “science” of overcoming procrastination, but the best book I’ve read on overcoming procrastination is The Now Habit by Neil Fiore

He offers some of the best practical advice, and he explains the mentality of procrastination and how to overcome false thinking.

Neil Fiore’s book is quite good, but I thought overcoming procrastination was more of an art than a science.

The one you can wait with reading till tomorrow..

If I were the one asking this question, I know it would be because reading the book would be one more way of putting off whatever it was that I didn’t want to do. It would be even better if it were going to take me a while to select the book (consulting a lot of sources first and researching alternatives in order to choose not just a good one but the very best one, more difficult by an order of magnitude) and then obtain it, preferably shipped by sea from across the ocean. I could make all that last at least a month, maybe two or three.

Alas, @jcowling, the right answer is probably just to do it rather than reading about it. I’d hate to have to list all the things I ought to be doing right now instead of writing this.