In 2009, Tony Hsieh retreated to Lake Tahoe, Calif., from his home in Las Vegas with his longtime friend Jenn Lim, whom he called his “backup brain.”
In just eight days, they drafted a book telling the intertwined stories of Mr. Hsieh’s entrepreneurial success at the helm of online retailer Zappos.com Inc., and the way the company had evolved from building the largest shoe selection online in its startup days in the early 2000s to a much loftier goal: delivering happiness to the world.