Emeritus Professor Ma In-sook, from the Department of Mathematics, published 《Essential Engineering Mathematics》 for students in the College of Engineering. The reason why Professor Ma wrote this textbook was that while educating students, she realized that most students had difficulty building the foundational knowledge of mathematics. The key benefit of this book is that it selects the essential content that students must learn and presents the key points concisely. It is designed to help students build a solid foundation of mathematical skills through abundant examples and detailed explanations of example solutions. The expressions used in the book are also terms that students can easily understand. In addition, the book includes an appendix covering the fundamental concepts of differentiation and integration, which are essential for understanding engineering mathematics, allowing students to review these concepts.