The pie chart demonstrated the persentage of five kinds of books which sold by bookseller from 1972 to 2012.
Overview, when the Biography, Travel and Others declined, the children’s fiction climbed over the year. Additionally the adult fiction demonstreated significant increase, while others decreased.
At the beginning of the 1972 the slice of children’s fiction, Biography and adult fiction illustrated the same persentage to 20%, while Travel showed lower persentage than others. In 1992 compared with 1972 the the adult fiction increased to 5%, while travel and children’s fiction raised only 2%. The Others and Biography decreased to 5%. In 2012 the adult fiction showed increadable grew to 20%. Although the children’s fiction surged to 3%, Biography, Others and Travel declined approximately to 10%. To sum up everything, the Biography, Others and Travel dropped over the year, while the adult fiction rised steadily.
