The given pie chart Express the percentage of different categories of book sold by a bookseller between 1972 and 2012
From an overall perspective, the information illustrate a important increase in the sales of adult fiction and children fiction there was a marked decrease in the sales of biographies and the other kinds. The rate of travel books expensienced variation during this period .
While, In 1972 most famous books it other with 25% and the least likely book is travel with 15%and the adult fiction , children fiction and biography are the same 20 % Similar ,In 2012 the most popular book is adult fiction with 45% and the least famous book is biography 8% and the other books are other is 12%, travel is 10% and the children fiction is 25% .
However, In 1992 the highest rank book is adult fiction is 25% and the lowest rank book is biography is 15% and the different book like other is 20% , children fiction is on 22% and The travel book is 18%.
