The pie charts demonstrate different kinds of books marketed by one bookstore from 1972 to 2012.
Overall, it is obvious that the popularity of adult fiction books grew by the end of the period becoming the most preferable choice among readers. While other genres’ rate experienced changes, children’s friction remained relatively stable.
Regarding adult fiction’s proportion, it was equal to 20% of books sold in 1972, then saw an increase to 25% in 1992. At the end of the period, it reached its peak of 45%. In contrast, books about biography and other types that were in demand at the beginning, with rates of 25% and 20%, started to get less relevant. Both experienced a noticeable decrease of 5% in 1992, then reached their lowest points of 8% and 10%.
As we can see from the charts, the category of children’s fiction books accounted for 20% in 1972. 1992 saw a slight increase to 22%. In 2012, it hit a high of 25%. Travel books’ proportion witnessed a moderate increase from 15% to 18% in 1992, but then declined to 10% by the end of the period.