"Differential Equations with Boundary-Value Problems" by Dennis G. Zill is a comprehensive textbook that focuses on the theory and applications of differential equations, emphasizing both ordinary and partial differential equations along with boundary-value problems. The book is designed for undergraduate students and includes a range of topics such as first-order equations, higher-order linear equations, systems of differential equations, and methods for solving boundary-value problems. Zill employs clear explanations, numerous examples, and exercises to reinforce understanding, making complex concepts accessible. Additionally, the textbook integrates technology and modern computational tools, reflecting the current trends in the field. It is often accompanied by resources available through Cengage, enhancing the learning experience with interactive materials.