Closing Image: Jan. 5, 2022

Bar graph titled "Estimated worldwide Amazon GMV (gross merchandise value)", indicating that between 2018 and 2021 Amazon's native sales transactions have been eclipsed by those of third-party sellers using the platform.

According to Marketplace Pulse, the Amazon marketplace (third-party sellers) doubled in the last two years. Amazon’s own retail sales were up 14 percent from 2019 to 2021, while the marketplace grew by 30 percent. Consumers tend to blame these third-party sellers for the frustration involved in identifying and ordering quality products (including books) on the site. Learn more.