A succinct list of points covered in the chapter serves as a review for the reader, reinforcing the new ideas that were presented in the chapter. Exercises. The exercises test the student’s knowledge of the language. Many exercises are intended to be done interactively while reading the text. This encourages self-paced instruction by the reader. In addition to exercising features of the language, some exercises look at a topic in more detail, and others extend the reader’s knowledge to an advanced area of use.
