The pie charts demonstrate the proportions of sales of one bookseller in three different years in 1972, 1992 and 2012.
Overall, it is clear that the figure for others had the largest figure while the travel had the lowest proportion in 1972. However, Adult fiction became one of the most popular sales over the next two decades whereas the figure for biography rounded off the list in 2012.
In 1972, Others accounted for the largest book sales, at 25%. The sales of travel represented approximately 15%. In addition, The remaining three category observed similar figures at exactly 20%.
In 1992, adult fiction and children’s fiction made up 25% and 22% respectively. The book sales for others constituted 20%, while travel and biography accounted for 18% and 15% respectively.
In 2012, adult fiction accounted for the largest proportion of sales, at 45%, followed by children’s fiction at 25%. The figure for others decreased to 12%, while travel and biography made up 10% and 8% respectively.
