A "Best Seller" refers to a book or other product that achieves high sales figures within a specific time frame. This status is often determined by sales rankings from various sources, such as The New York Times or Amazon. Best sellers can vary by genre, including fiction, non-fiction, and children's books, and are frequently promoted for their popularity. The term can also apply to other products, such as music albums or consumer goods, indicating that they are among the top-selling items in their category. Best sellers often attract attention from media and consumers, leading to increased visibility and sales.