The information regarding the ratio of various categories of books sold by a bookseller in the years 1972, 1992 , and 2012. Has been illustrated by the pie charts.
Overall it can be seen that, adults fiction were most popular books , whereas the least popular books were the biographies sold by bookseller thorough the given period of time.
To Begin with, in 1972 , bookseller sold adults fiction books were 20% , which was increased by 5% in 1992 and reached 45% in 2012. The ratio of children fiction books were 20% in 1972 and it was slightly rose to 22% in 1992 , than in 2012 which was stood at 25 %.
However, others type of books shows decreased trend. The period of 1972 , 1992 and 2012 , bookseller sold Books of travel with 15% , 18%, 10% and biological Books sold with 20% , 15% , 8 % , respectively. The proportion Of Other Books sold by bookseller at 25% in 1972 , which was fall by 5% in 1992, and last year it was 12% .