"Do It Now" by William Knaus
This is another procrastination classic based on Cognitive Psychology. Knaus co-authored the book "Overcoming Procrastination" with Albert Ellis (founder of Cognitive Psychology). I bought this book but didn't read it - I think because the Cognitive Psychology approach wasn't working for me. (See my post about "Overcoming Procrastination" for more info.)
If you've read this book, please add a comment.