The provided chart illustrates the sales figures (in thousands of copies) for four book categories – hobbies,
entertainment, history, and arts – from 2002 to 2012. Overall, history books consistently outsold all other categories throughout the period, while hobby books consistently maintained the lowest sales.
History books enjoyed the highest sales, starting at approximately 5,000 copies in 2002 and experiencing a steady, albeit fluctuating, growth. Sales peaked at 10,000 copies in 2008 before slightly declining to around 8,000 copies in 2010, subsequently showing a modest upward trend. In contrast, hobby books began at approximately 1,000 copies in 2002, briefly declining to a low of just 100 copies in 2006 before remaining relatively static at around 100-200 copies for the rest of the period.
Entertainment and arts books displayed a broadly similar sales trajectory, although arts books ultimately surpassed entertainment sales by the end of the period. Both began with relatively low sales – approximately 125 copies for entertainment and 111 copies for arts in
2002. Sales for both categories increased to approximately 3,000 copies between 2006 and 2008. While entertainment book sales remained relatively stable thereafter, arts book sales continued to rise, reaching approximately 4,000 copies by 2012.