If you ask about the sales volume, each publishing house will have a different definition of best-selling volume. However, it is generally believed that a book must be a bestseller if it can sell 654.38+10,000 copies in the year of publication, and some publishing houses are considered as bestsellers if they can sell more than 50,000 copies in the year of publication.

Expansion: the sales volume of printed books obviously bottomed out in 20 12, but after that, children's books and adult non-fiction books began to increase, and the main form changed from paperback to hardcover. Students also began to return to the arms of printed books. Many surveys have found that students prefer to print textbooks, especially college students who have tried to print books and e-books. In HP's survey, about 57% students prefer paper textbooks, while only 265,438+0% students prefer electronic textbooks. At the same time, e-books seem to have entered a platform era. According to the statistics of American Publishers Association, although e-books achieved "unprecedented growth" in 20 12, the sales volume in 20 13 only increased by 3.8%. 20 14 recorded a moderate growth of 5.6% in the first three quarters. Although the statistics of e-book sales by major institutions are not uniform, the scope is roughly the same: e-books account for about 27% of book sales in the United States, and may reach one-third at most.