Amazon Join refers to the process of becoming a part of Amazon’s seller community. To join, individuals or businesses need to create an Amazon Seller account, where they can choose between selling as an individual or a professional seller. Once registered, sellers can list their products, utilize Amazon’s fulfillment services, and access a range of tools to manage their inventory, marketing, and customer service. Joining Amazon as a seller opens up opportunities to tap into one of the largest online marketplaces in the world.