Calculus, now in its eleventh edition and for the first time offered in an Advanced Placement Edition, aims to improve student conceptual understanding and comprehension of the material by striking a balance between the rigor and clarity of the explanations, sound mathematics, excellent exercises, applications, and examples. Access to resources created expressly for the Advanced Placement course is now included in this revised edition. Calculus, 11th Edition, AP Edition offers the practice, support, concept mastery, and personalized instruction that are necessary to enhance success in the AP Calculus AB & BC courses. It also includes the Wiley PLUS with ORION refresher module for algebra, trigonometry, and polynomial equations. ORION Adaptive Practice, which is based on cognitive science, assists students in developing subject-matter mastery while making the best use of their study time. Student strengths and shortcomings are highlighted by simple analytics to increase their chances of success in the course.