Countless people have relied on Anton to learn the difficult concepts of calculus. The new ninth edition continues the tradition of providing an accessible introduction to the field. It improves on the carefully worked and special problems to increase comprehension. New applied exercises demonstrate the usefulness of mathematics. More summary tables and step-by-step summaries are included to offer additional support when learning the concepts. And Quick Check exercises have been revised to more precisely focus on the most important ideas. This book will help anyone who needs to learn calculus and build a strong mathematical foundation.