The diagrams give information about the proportion of books involving adult fiction, children’s fiction, biography, travel, and others sold by a bookseller from 1972 to 2012.
Overall, there were significant increases in the percentage of adult fiction and children’s fiction, while that of biography, travel, and others had decreased. In 1972, it can see the bookseller sold the proportion of adult fiction, children’s fiction, biography likely.
First, the figure for adult fiction sold by a bookseller accounted for 20% in 1972, after which the proportion rose slightly to around 25%. In 2012, it experienced a dramatic growth to 45%, at which point it was the highest of percentage. Moreover, children’s fiction was 20% in 1972 before increased to 22% in 1992 and 25% in 2012.
Furthermore, biography, travel, and others were 15%, 20%, and 25%, respectively. In 1992, there were declines to 15% and 10% in the proportion of biography and others, while that of travel rose normally to 18%. However, biography, travel, and others witnessed considerable drops to 8%,10% and 12% in 2012.