This book extensively covers rock mechanics and engineering, playing a vital role in mining, geological, and civil applications. It explores the stability, failure, and behavior of rock masses, offering control and prediction methods. Fundamental concepts, stress and strain analyses, failure theories, and rock characteristics are addressed, essential for safety in mining and construction. Applications like geological hazard assessment, slope stability, and foundation design demonstrate its significance in civil and geological engineering. The book's structured approach includes an overview in Chapter 1, stress analyses in Chapter 2, and plane strain analyses in Chapter 3. Subsequent chapters delve into rock behavior, failure theories, and specific properties. Practical aspects, such as designing underground openings, are covered in later chapters. The incorporation of numerous solved tutorials enhances its value for students and educators seeking a comprehensive understanding of these pivotal topics.