What does it really mean to be a bestseller on Amazon? It usually means your book reached the top of one of Amazon's category lists, often for a short time. It is a real achievement, but it is different from national lists like The New York Times. Amazon updates its bestseller lists frequently, and there are thousands of categories. A book can become a category bestseller with fewer sales in a small category than it would need in a large one. In this article, you will get a c