"Incredible and Influential"
Getting Things Done (GTD) is an incredible book that, when applied, has made a dramatic difference not only in how I work, but also how I feel about work.
I am much less stressed than a few weeks ago, and feel more equipped to handle new projects as they arrive. As an IT Administrator on a tight budget with supervisors that dream big and commit to technology-dependent projects before talking with me, stress was very high and projects were slipping through the cracks.
By implementing some of the GTD principles, I haven't had anything new slip through the cracks. Best of all, it isn't a "system" in the traditional sense, it is a set of principles on how our brains process information, and how we can best take advantage of those processes. I still use paper files, online task lists, and my existing email client. I have not made many changes to my existing system, I'm just using it better than I was a month ago.
The change has been noticed by others, and after sharing a few concepts their jobs have become much less stressful.
If you have way too much to get done, or if you are easily stressed at work, I strongly recommend this book. If you are already organized and nothing is falling through the cracks while you are calm, cool, and collected 24/7, then this may not be the book for you.