A "school book" is typically a textbook or coursebook used in a classroom setting. However, there are various synonyms that can be used to refer to these types of books. For example, they can be called "textbooks," "study materials," "course materials," "educational materials," or "instructional materials." Additionally, depending on the subject or topic, they can be referred to as "biology books," "math books," "history books," or "language arts books." Lastly, in some cases, "reference books" or "study guides" may be used instead of traditional textbooks. Regardless of the terminology used, these books are a crucial part of the learning process and help students gain knowledge and skills that are necessary for their academic and personal growth.