Amazon has become the second publicly traded company to be worth $1 trillion, hot on the heels of iPhone maker Apple. Amazon has revolutionized how people shop online and is the world’s dominant internet retailer. In two decades the company expanded far beyond its bookseller beginnings, combining its world-spanning retail operation with less flashy but very profitable advertising and cloud computing businesses. The company’s blowout success has made its founder and CEO, Jeff Bezos, No.