The pie charts compare three different periods (1972, 1992, and 2012) in terms of the proportion of five types of books sold by a bookseller.
In general, the charts make it clear that there was a dramatic change in the rate of book sales. In particular, children’s fiction and adult fiction saw an increase in the percentage of book kids, while others, travel and biography witnessed a decrease in this regard over the 40-year period .
Looking at the graph in more detail, others made up the largest percentage of book types, with 25% in the initial year, but by 2012, they had dramatically declined from 25% to 12% in this regard. The figures for biography and travel compromised 20% and 15% in 1972, which changed to 8% and 10%, respectively, by the final year.
In 1972, Interestingly, children’s fiction and adult fiction accounted for the same percentage, with 20%. In 1992, both children’s fiction and adult fiction witnessed the biggest rates of book types compared to other book types, which increased slightly and significantly to 25% and 45% by 2012.