The pie charts illustrate the proportion of five kind of books including others, travel, biography, adult fiction and children’s diction was sold by a bookseller from 1972 to 2012.
Overall, it is that the figure for books others, travel, biography experienced a downward trend. By contrast, the percentage of books children’s fiction and adult showed an upward trend. In addition, the proportion of books adult fiction accounted for largest in 1992 and 2012, except 1972.
In term of the book others, book travel, book biography. In 1972, the percentage of book others make up the largest 25%, compared to 15% of travel. Forty years later, there was gradual decrease to 20% and 18 % in the proportion of book others sold and travel sold respectively. The figure for book biography sold started at 20% in 1972, after that it was a significant drop to 8% in 2012.
Regarding the remaining books sold. In 1972, adult fiction started at 20%, then it grew dramatically to 45% in 2012, which was the top of race. The proportion of children’s fiction was similar, this type also accounted for 20% in 1972 and then increase by 5% in 2012.
