The graph depicts on the number of books sold from four different types between 2002 and 2012.
Overall, it’s clear that there was an increase in the number of three book types, including history books, art books, entertainment books, while the opposite was true for hobbies books. It’s also worth mentioning that history books had the most sold copies from beginning to the end.
Looking at the details, history books and art books saw an upward trend, albeit in different levels. History books started off with around 4,000 copies in 2002 and finished the time frame with 9,000 in 2012, after a gradual rise except for the year of 2008 with 10,000. As for the latter one, the figure accounted for about 2,000 in 2002. Additionally, the number of books started growing year after year before reaching 4,000 after a decade.
When it comes to entertainment books, in the beginning, the number of books grew gradually with approximately 2,000 before declining to around 2,000 in 2010. The books continued to sell less than 4,000 editions for the next year. Hobbies books started off with around 500 in 2002 and stood at its all-time high of 1,000 prior to a period of declining to as low as around 100 in the following years.