School textbooks are educational books used in classrooms to teach students various subjects, such as math, science, history, and language arts. They provide structured content, exercises, and illustrations to help students understand complex concepts. Textbooks are often aligned with curriculum standards set by educational authorities. These books are typically organized by grade level and subject, making it easier for teachers to select appropriate materials for their students. Many textbooks also include online resources, such as quizzes and interactive activities, to enhance learning. They play a crucial role in the educational process, serving as a primary source of information for students.