Textbook/ˈtekstbʊk/ Definition 1 of 2Pro Tip 1/3Subject Specific Textbooks are tailored to a specific course or field of study, like chemistry or history. The library has a section for used biology textbooks. Pro Tip 2/3Academic Language Textbooks often contain more formal language and terminology relevant to their subject. The textbook explained psychological terms very clearly. Pro Tip 3/3Structured Learning Textbooks are designed to present information in a structured way, usually in chapters. Please read chapter 3 of our textbook for homework.