First of all – you can’t manage time; it takes care if itself. All we can manage is how we use it. I don’t like productivity management either, because we use our time for every purpose, obviously.

Time Management - by Michael F Lipp
This looks at the pitfalls of 'time management' which should be called, How to Use Your Time. It points to several useful things to do or not do. If your time management system works, you're not busy enough.

The Antidote - by Michael F Lipp

I’ve noticed that many clients repeatedly stop themselves in the same way. One of my clients finds himself severely overworked and is also in danger of missing critical deadlines. Yet he seems to dawdle intentionally, falling into