Brad Stone is the New York Times bestselling author of two books about Amazon, The Everything Store and Amazon Unbound. Together, they tell a complete story of Amazon over 25 years of evolution. Amazon Unbound includes an in-depth look at the origin behind Amazon Alexa and Echo and their implications for the industry. Stone is a senior executive editor overseeing tech industry reporting at Bloomberg News. He began his tech reporting career at Newsweek covering Silicon Valley and was later a technology correspondent for the New York Times before joining Bloomberg in 2010.