The bar graph provides information about the amount of money earned from the sale of five types of books between 2006 and 2010. Overall, the amount of money generated by romance books was the highest compared to the four other types of books.
In 2006, around 82 thousand dollars was earned from romance books; however, the figure increased further afterward, reaching nearly 150 thousand dollars in 2007 before dropping to 90 thousand dollars in 2010. Meanwhile, the earnings from young adult books remained stable at around 30 thousand in the first two years. The figure then fell to below 20 thousand dollars in 2008 before rising back to the initial amount in 2010.
The earnings from sci-fi and fantasy books remained below 20 thousand dollars throughout the period. In contrast, the amount of money earned from classic books witnessed a decrease from approximately 18 thousand dollars in 2006 to 10 thousand dollars in 2010. The earnings from mystery books rose from 60 thousand dollars in 2006 to 82 thousand dollars in 2007 before falling to around 55 thousand dollars at the end of the period.