Outliers: The Story of Success is the third non-fiction book written by Malcolm Gladwell and published by Little, Brown and Company on November 18, 2008. In Outliers, Gladwell examines the factors that contribute to high levels of success. To support his thesis, he examines why the majority of Canadian ice hockey players are born in the first few months of the calendar year, how Microsoft co-founder Bill Gates achieved his extreme wealth, how the Beatles became one of the most successful musical acts in human history, how Joseph Flom built Skadden, Arps, Slate, Meagher & Flom into one of the most successful law firms in the world, how cultural differences play a large part in perceived intelligence and rational decision making, and how two people with exceptional intelligence, Christopher Langan and J. Robert Oppenheimer, end up with such vastly different fortunes. Throughout the publication, Gladwell repeatedly mentions the "10,000-Hour Rule", claiming that the key to achieving world-class expertise in any skill, is, to a large extent, a matter of practicing the correct way, for a total of around 10,000 hours, though the authors of the original study this was based on have disputed Gladwell's usage.
The book debuted at number one on the bestseller lists for The New York Times and The Globe and Mail, holding the position on the former for eleven consecutive weeks. Generally well received by critics, Outliers was considered more personal than Gladwell's other works, and some reviews commented on how much Outliers felt like an autobiography. Reviews praised the connection that Gladwell draws between his own background and the rest of the publication to conclude the book. Reviewers also appreciated the questions posed by Outliers, finding it important to determine how much individual potential is ignored by society. However, the lessons learned were considered anticlimactic and dispiriting. The writing style, though deemed easy to understand, was criticized for oversimplifying complex social phenomena.