Tony Hsieh is the CEO of online shoe and clothing shop Zappos.com, Inc,. Hsieh joined zappos.com as an advisor and investor, and eventually became CEO where he helped the company from almost no sales to over $1 billion in gross merchandise sales annually, while simultaneously making Fortune’s annual Best Companies to Work For list. In November 2009, Zappos.com, Inc. was acquired by Amazon.com in a deal valued at $1.2 billion on the day of closing. Hsieh graduated from Harvard University with a BA in Computer Science. In June 2010, Hsieh published New York Times #1 bestseller Delivering Happiness, a book about his entrepreneurial endeavors.