This book explores the fundamental principles and theories that foster a practical and intuitive understanding of quantum mechanics. Each chapter is concluded with real-world applications, animations, and discussion questions to help readers better visualize and understand quantum phenomena. It is suitable for undergraduate students in physics and related fields who are looking to learn and strengthen their foundational understanding of quantum mechanics. Originally designed for bilingual teaching and learning, the book considers differences in cultural background and pedagogical approach, especially their potential influence on scientific reasoning and habitual expression, aiming to bridge those differences from new perspectives.