This book is written for students taking their first course in calculus. It covers the standard topics of Calculus I: functions, limits and continuity, derivatives and their applications, and integration with its applications. The presentation favors genuine conceptual understanding over rote memorization, while still building the computational fluency you will need in later courses.

Every section opens with a short list of learning goals, develops the ideas with figures and fully worked examples, and closes with an exercise set for practice. Definitions and theorems are boxed in blue and green so you can find them quickly when reviewing. Colored side boxes point out common pitfalls (Caution), useful shortcuts (Remark), historical background (A Look Back), and notes on computational tools.