As the executive director of the Institute for Excellence in Sales, I try to read as many new sales books as I can, however the book that's had the biggest impact on me so far is "Ultimate Secret to Getting Absolutely Everything You Want" by Mike Hernacki. It was published in 1985 but it's message is very pertinent. Mike shares the secret to business success. It's not just your commitment, it's your willingness to do what's necessary. Very powerful. Go pick it up.