Calculus has a deservedly central role in higher education. It is not only the key to the full range of quantitative disciplines; it is also a crucial component in a students intellectual development. I hope this new edition will continue to play a role in opening up for students the multifaceted world of calculus. Every section of text was carefully revised. During the revision process, I paid particular attention to feedback from adopters, reviewers, and students who have used the book. Their insights and creative suggestions brought numerous improvements to the text.