The graphs gives data about proportion of five range of books offered by a bookseller in 1972, 1992 and 2012. Overall, the highest amount of bookseller bought other types of books in 1972, while adult fiction books were read by huge proportion of bookseller from 1992 to 2012.
In 1972, huge percentage of other kinds of book sold (25%). However, three kinds of books were achieved 20%. While, travel book was the lowest (15%). In next two decades, percentage other range of books (20%) and biography declined by 5% (15%), but proportion of adult fiction had an increase to 25%.
Additionally, there was a dramatic change in 2012. Percentage of adult’s fiction rose to 45% and children’s fiction grew slightly (25%). Meanwhile, proportion of three range of books decreased significantly. Especially, percentage of biography book reduced significantly to 8%. Proportion of other types of books and travel books had a rapid decline but, higher than percentage of biography book.
