The pie chart below shows the percentage of 5 kinds of books sold by a bookseller between 1972 and 2012.

The pie charts illustrate the proportions of five kinds of books sold by bookseller in the years 1972, 1992 and 2012. Overall, the proportions of adult and children’s fiction, increased over the period, with the former showing the most significant rise. In contrast, the shares of the remaining categories – travel books, biography and other […]