If you are looking for a time management book, this book: Attack Your Day! Before It Attacks You is simple, clear and readable. It is also currently free on Kindle.
I don't know how long it will stay free, so make sure and check the price tag when you go to the site.
I need to upgrade my time management skills, so I'm going to be working on that during Lent (which starts next week!). A priest recommended that I try to adopt some kind of daily Rule, so that sort of seems to confirm my uneasy sense that I could benefit from increased order in my life.