Amazon Marketplace is an online platform that allows third-party sellers to offer their products alongside Amazon's own inventory. This marketplace provides a wide variety of items, ranging from electronics to clothing, enabling customers to find almost anything they need in one place. Sellers on Amazon Marketplace can create their own storefronts and manage their listings, pricing, and shipping options. This system benefits both sellers, who gain access to a large customer base, and buyers, who enjoy competitive prices and diverse product choices.