.pop-desc { font-family: Georgia, 'Times New Roman', serif; color: #1a1a1a; line-height: 1.75; max-width: 720px; } .pop-desc p { margin: 0 0 1.25em 0; font-size: 1em; } .pop-desc strong { font-weight: 700; } .pop-desc em { font-style: italic; } .pop-desc .pop-lead { font-size: 1.05em; border-left: 3px solid #1a1a1a; padding-left: 1.1em; margin-bottom: 1.75em; } .pop-desc h3 { font-family: Georgia, 'Times New Roman', serif; font-size: 0.8em; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: #1a1a1a; margin: 2em 0 0.75em 0; padding-bottom: 0.4em; border-bottom: 1px solid #d0d0d0; } .pop-desc ul.pop-features { list-style: none; padding: 0; margin: 0 0 1.5em 0; } .pop-desc ul.pop-features li { padding: 0.55em 0 0.55em 1.4em; position: relative; border-bottom: 1px solid #efefef; font-size: 0.97em; } .pop-desc ul.pop-features li:last-child { border-bottom: none; } .pop-desc ul.pop-features li::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 5px; height: 5px; background: #1a1a1a; border-radius: 50%; } .pop-desc .pop-notice { background: #f7f7f5; border-left: 3px solid #1a1a1a; padding: 1em 1.25em; margin: 1.75em 0; font-size: 0.93em; } .pop-desc .pop-notice p { margin: 0; } .pop-desc .pop-shipping { display: flex; flex-wrap: wrap; gap: 0; border: 1px solid #d0d0d0; margin: 1.75em 0; font-size: 0.8em; } .pop-desc .pop-shipping-item { flex: 1 1 auto; min-width: 0; padding: 0.7em 0.5em; text-align: center; border-right: 1px solid #d0d0d0; box-sizing: border-box; } .pop-desc .pop-shipping-item:last-child { border-right: none; } .pop-desc .pop-shipping-item .pop-shipping-label { display: block; font-size: 0.75em; letter-spacing: 0.08em; text-transform: uppercase; color: #777; margin-bottom: 0.2em; white-space: nowrap; } .pop-desc .pop-shipping-item .pop-shipping-value { display: block; font-weight: 700; color: #1a1a1a; word-break: break-word; } .pop-desc hr.pop-rule { border: none; border-top: 1px solid #d0d0d0; margin: 2em 0; } .pop-desc .pop-author { font-size: 0.93em; color: #333; } Calculus, 4th Edition Digital Edition by Michael Spivak delivers the complete text of the definitive proof-based calculus book in a secure digital format — available here direct from Publish or Perish, Inc., the official publisher. Spivak wrote this book to present calculus as the first real encounter with mathematics — not a collection of techniques, but a rigorous and deeply satisfying theory built from first principles. This digital edition reproduces every chapter, appendix, problem, and illustration of the fourth and final hardcover edition in full fidelity, with nothing abridged or reformatted. Please note: Digital orders are fulfilled manually by our team. While we process orders as promptly as possible, please allow up to one business day to receive your download link by email. We appreciate your patience and will have your order to you as quickly as we can. What This Edition Contains All 29 chapters complete and unabridged — every part of the fourth edition including the starred optional chapters and the epilogue on the construction of the real numbers. Over 625 problems — the full problem set as it appears in the print edition, from foundational exercises to problems of considerable difficulty and interest. All appendices — polar coordinates, uniform continuity, parametric curves, Riemann sums, vectors, conic sections, and more. Official and authorized — purchased directly from the publisher, guaranteeing an authentic, high-fidelity text. Digital Format and Compatibility This edition is delivered in Readium LCP (Licensed Content Protection) format — an open, interoperable standard supported by a broad ecosystem of applications. Compatible readers include Thorium Reader (desktop), Aldiko Next (mobile), and other Readium-compliant apps. Please confirm your preferred reading application supports Readium LCP before purchasing. Format Readium LCP Fulfillment Manual by Our Team Delivery Within 1 Business Day Shipping Cost None About the Author Michael Spivak (1940–2020) earned his Ph.D. from Princeton University and is celebrated for writing mathematics textbooks of extraordinary rigor and clarity. In addition to Calculus, he authored the five-volume A Comprehensive Introduction to Differential Geometry and Physics for Mathematicians, Mechanics I. He founded Publish or Perish, Inc., through which all of his major works are published.