selling business refers to the act of running a business that involves selling products or services. For Amazon sellers, selling a business may involve managing an e-commerce store, sourcing products, setting up pricing strategies, and fulfilling customer orders. Sellers can choose between Fulfillment by Amazon (FBA) or Fulfillment by Merchant (FBM) models depending on their business needs. Successful selling requires optimizing product listings, driving traffic through ads, and offering excellent customer service to build a solid reputation in the marketplace.