Amazon.com is an American-based multinational electronic commerce company founded in 1994 by Jeff Bezos and headquartered in Seattle, Washington. It started as an online bookstore and became the largest online retailer in the world. Amazon sells a variety of products including books, movies, music, electronics and more through multiple websites globally. The company uses a multi-tier inventory model and partnerships to manage its complex supply chain and distribution network in order to meet fluctuating customer demand.