Thomas’ Calculus, 13th Edition, authored by George Thomas Jr., is designed for a three-semester or four-quarter calculus course aimed at math, engineering, and science majors. This edition continues to be esteemed for its clear and precise explanations, carefully selected examples, and superior illustrations, complemented by an extensive exercise set that has been refined, updated, and expanded to enhance technical proficiency and deepen appreciation of the subject matter. Co-authored by Joel R. Hass and Maurice D. Weir, this text aims to develop both technical competence and a profound understanding of calculus.