Airbnb, Inc. primarily operates a global platform for stays and experiences. The Company’s marketplace model connects hosts and guests online or through mobile devices to book spaces and experiences around the world. Its listings include homes, cabins, treehouses, boats, castles, and luxury villas. The Company's Website and mobile applications provide its guests with an engaging way to explore a variety of homes and experiences and an easy way to book them. Its hosts generally fall into two categories: individual and professional. Its hosts generally fall into two categories: individual and professional. Individual hosts are those who activate their listings directly on Airbnb through its Website or mobile applications. Professional hosts are often those who run property management or hospitality businesses and generally use application programming interfaces to list their properties on its platform.