What Does it Mean to Be a Bestseller, Anyway?

American bestsellers are discussed on Bookforum.

From the piece...

The term best seller has always been a misnomer. Fast seller would be more appropriate, since the pace of sales matters as much as the quantity. The first list of books "in order of demand" was created in 1895 by Harry Thurston Peck, editor of the trade magazine The Bookman. Publishers Weekly started its own list in 1912, but others were slow to follow: The New York Times did not create its best-seller list until 1942. Now, the Wall Street Journal and USA Today also compile national lists, and each of the major regional papers has its own—all generated in slightly different ways. The Times bases its list on sales reports from around four thousand booksellers, which it declines to name (a column by the paper's public editor a few years ago said only that they change constantly). The Wall Street Journal used to track only sales in major chain stores but now bases its rankings on data from Nielsen BookScan, an authoritative industry source that includes as many as three-quarters of the nation's bookstores, around eleven thousand. IndieBound surveys only independent bookstores. Amazon.com offers its own list, updated every hour, but—like all the others—it is based on orders, not actual sales (since returns are not taken into account). Thus a writer with a carefully timed marketing blitz can push his book to a relatively high Amazon ranking for a day or so, allowing him to claim that it was, say, a "top ten Amazon best seller." The system's vulnerability to manipulation has resulted in the perception that, as Eliza Truitt wrote in Slate, the term best seller on the cover of a book means "about as much as the phrase 'original recipe' does on a jar of spaghetti sauce."

From the start, Peck seems to have had mixed feelings about the arbitrariness of the mechanism he had chosen to anoint books. "The period during which a popular novel enjoys favor is growing shorter all the time nowadays," he wrote in 1902, lamenting "the flood of fiction that is being placed upon the market and vigorously promoted practically every month in the year." While there has never been a defined threshold for making it onto the list—there is no guarantee that a book will be a top ten best seller if it sells fifty thousand copies, one hundred thousand, or even five hundred thousand—both the level and the pace of sales have increased exponentially. (For the sake of simplicity, the statistics in this essay are drawn mainly from the annual ranking of hardcover fiction by Publishers Weekly, which is the most comprehensive historical source.) During the list's first few decades, No. 1 best sellers typically sold about a quarter million copies in the first year after their release. The first superseller, the picaresque novel Anthony Adverse by Hervey Allen (1933), sold six hundred thousand copies over its first four years. Its record was promptly beaten by Margaret Mitchell's Gone with the Wind (1936), the first book to sell one million copies in a single year. In 1956, Peyton Place by Grace Metalious—still one of the best-selling novels of all time—sold sixty thousand copies within ten days of its publication: It was at the top of the New York Times best-seller list for fifty-nine weeks. Now, each of the top five novels easily sells one million copies in hardcover. The best-selling novel of 2010, The Girl Who Kicked the Hornet's Nest by Swedish crime writer Stieg Larsson, sold nearly two million copies last year.