What does it take to light the spark of creativity? For more than a decade, Studio 360 host Kurt Andersen and producer Julie Burstein have been getting at that question with artists, scientists and other thinkers. Themes have emerged in those conversations. The most creative minds are excited about the work they do and they're willing to reach beyond their comfort zone. Burstein and Andersen join Doug to talk about the lessons they've collected in a new book called "Spark: How Creativity Works."