A bestseller is, usually, a book that is included on a list of top-selling or frequently-borrowed titles, normally based on publishing industry and book trade figures and library circulation statistics; such lists may be published by newspapers, magazines, or book store chains.
Some lists are broken down into classifications and specialties (number one best selling new novel, nonfiction book, cookbook, etc.). are published by Publishers Weekly, USA Today, New York Times and the Washington Post.
Bestseller lists may vary widely, depending on the method used for calculating sales.
The Indie bestseller lists, for example, use only sales numbers, provided by independently owned (non-chain) bookstores, while the New York Times list includes both wholesale and retail sales from a variety of sources.
Bestsellers also may be ranked separately for hardcover and paperback editions.
Typically, a hardcover edition appears first, followed in months or years by the much less expensive paperback version.
Robinson Crusoe (1719) and The Adventures of Roderick Random (1748) were early eighteenth century short novels with very large publication numbers, as well as gaining international success..In the United Kingdom, a hardcover book could be considered a "bestseller" with sales ranging from 4,000 to 25,000 copies per week, and in Canada, bestsellers are determined according to weekly rankings in the country's national print sales tracking service, BNC Sales Data.There are many "bestseller lists" that display anywhere from 10 to 150 titles.An author may also be referred to as a bestseller if their work often appears in this category. Most of these lists track book sales from national and independent bookstores, as well as sales from major internet retailers such as and Barnes & Noble.In everyday use, the term bestseller is not usually associated with a specified level of sales, and may be used very loosely indeed in publishers' publicity.