sellr is a possible misspelling of “seller” on Amazon. As an Amazon seller, you can create a listing for products, set competitive prices, and start selling to a global audience. Being a seller on Amazon provides numerous opportunities to tap into one of the largest e-commerce markets in the world. Whether you’re using Amazon’s Fulfillment by Amazon (FBA) service or handling shipping yourself, selling on Amazon is an excellent way to build a scalable business with access to millions of customers.