Here are some of my favorite time management resources:
Self Matters: Creating Your Life from the Inside Out by Philip C. McGraw
Time Traps: Proven Strategies for Swamped Salespeople by Todd Duncan
Successful Time Management for Dummies by Dirk Zeller
The Seven Habits of Highly Effective People by Stephen Covey
Margin: Restoring Emotional, Physical, Financial and Time Reserves to Overloaded Lives by Richard A. Swenson, M.D.