This term “best seller” refers to those items, usually books, which are in highest demand by the consumer. The most popular goods by virtue of what sells on a consistent bases over a certain period of time; those things that never seem to get old or grow unpopular according to merchants.
A bestseller is a book that is identified as extremely popular by its inclusion on lists of currently top selling titles that are based on publishing industry and book trade figures and published by newspapers, magazines, or bookstore chains. Some lists are broken down into classifications and specialties (number one best selling new cookbook, novel, nonfiction, etc.). The New York Times Best Seller list is one of the best-known bestseller lists for the US. The New York times does not include sales from Internet retailers or box stores such as Walmart or Target. It is not uncommon that a book that appears as number 1, will fall short in actual sales. The New York Times Best seller list only tracks National and Independent book stores.