The bar chart and pie chart illustrate the percentage of five books sold by a bookseller between 1972, 1992, and 2012. Information is divided by three years in the bar chart and by gender in the pie charts.
Overall, the majority of book sales were in 2012, while their percentage declined in 2012. The proportion of other books was similar and showed little difference across the education levels.
In 1972 and 1992, the percentage of others increased to 25%, rather than in 2012. Although the book ”Travel” extremely declined in 2012, it was 18% sold in 1992. Children’s fiction was roughly purchased 20% in 1972 and increased in 1992 and 2012.
The ”Biography” book was purchased only 20% and did not increase in other years; conversely, it decreased. The largest proportion of books was ”Adult fiction”. In 1972, it was bought solely 20%, and in 1992, it increased to 25%. Finally, in 2012, this book was sold 45%, around other books.