The provided pie chart delineates data regarding the changes in the percentage of five kinds of books sold by bookseller over a forty-year period spanning from 1972 to 2012.
Overall, it is immediately salient that adult fiction experienced a remarkable upward trend, whereas the converse was true for others which witnessed a steady decline throughout the timescale.
Additionally, the most dramatic growth was registered in adult fiction.
In terms of the detailed statistics, adult fiction commenced at approximately 20% in 1972 and subsequently surged dramatically to reach a peak of 45% in 2012. Following this exponential growth, the figures plateaued consistently at this high level for the remainder of the period. Likewise, children’s fiction started at 20% in 1972 and then climbed gradually to 25%.
By striking contrast, others followed a completely inverted trajectory. The data plummeted sharply from 25% in 1972, before hitting a rock-bottom of merely 12%. Thereafter, this category experienced wild fluctuations until the final year. Similarly, biography started at 20% in 1972 and then decreased slowly to 8% in 2012 and travel started at 15% in 1972 and then declined minimally to 10% to 2012.
