Outliers: The Story of Success by Malcolm Gladwell was required reading at CareerBuilder prior to the 2010 Annual Kickoff meeting because Malcolm was speaking. It turned out to be a great look into some of our greatest American success stories, and an in-depth look at how much work goes into truly being an expert. Even though it feels a bit cliche, the 10,000-hour rule will remind you the level of effort it takes to be a professional, no matter what field you are in.