A Calculus textbook is an educational resource designed to teach the principles and applications of calculus, a branch of mathematics focused on change and motion. These textbooks typically cover fundamental concepts such as limits, derivatives, integrals, and the Fundamental Theorem of Calculus. They often include examples, exercises, and illustrations to help students grasp complex ideas. Many Calculus textbooks are structured to cater to different learning levels, from high school to university courses. They may also provide supplementary materials, such as online resources or problem sets, to enhance the learning experience. Popular authors in this field include James Stewart and Michael Spivak.