(2) comics; (3) There are 240 cartoons, 2 popular science books, 60 literature books and 90 other books.

Test analysis: (1) First calculate the total number according to the number and corresponding percentage of books such as Literature, and then calculate the percentage of books such as Popular Science and the number of books such as Comics;

(2) According to the percentage of these four books in the fan-shaped statistical chart, we can make a judgment;

(3) Multiply 600 by the percentage of these four books in the pie chart to get the result.

(1) What is the percentage of "popular science" books

The number of books such as "Comics"

As shown in the figure, complete the bar chart and fan chart:

(2) As can be seen from the picture, students in this school like to borrow books like "comics" most;

(3) The number of books such as "Comics"

The number of books such as "popular science"

The number of books such as "literature"

Number of "other" books

Comments: The application of statistical chart is the focus of junior high school mathematics, and it is also a common problem in senior high school entrance examination.