Most students use a math book to do their assignments. But rarely do students READ a math book.
But some people do use math books for other reasons. Like looking at examples, for reference or (heaven forbid) to teach themselves.
Regardless of why you open a math book, knowing a bit about it can be helpful. This small packet has discussion questions along with a mini-poster of the parts of a math book. For more info, check out this post on How to Read a Math Book on MathFour.com