This chapter reviews a wide range of slope movement processes and classifies them based on features relevant to recognition, avoidance, control, or correction. While the 1958 classification of landslides has been widely accepted, it has been updated to include more recent data and classifications. The term "slope movements" is used instead of "landslides" to emphasize the broader range of processes. The classification includes types such as falls, topples, slides, spreads, and flows, with complex movements involving combinations of these types. Materials are categorized into rock and engineering soil, with soil further divided into debris and earth. The classification is not rigid, as slope movements can vary in type and material, and continuous gradation is common. Slope movements are classified based on the type of movement and the material involved. Falls involve rapid descent of detached material, while topples involve rotation about a pivot point. Slides include rotational and translational types, with rotational slides involving curved rupture surfaces and translational slides involving planar surfaces. Spreads involve lateral extension, and flows involve movement of materials as a fluid. Complex movements combine multiple types. The chapter discusses various types of slope movements, including falls, topples, slides, spreads, and flows, with detailed descriptions of each. It also covers lateral spreads, which involve lateral extension, and flows in bedrock and debris. The classification includes examples of different types of flows, such as debris flows, mud flows, and earth flows, which can vary in speed and water content. The chapter also addresses the importance of understanding these movements for engineering and geological applications, highlighting the need for precise terminology and classification to ensure accurate analysis and control. The classification is based on the type of movement and material, with a focus on the distinction between rotational and translational slides. The chapter concludes with a discussion of complex movements and their significance in slope stability and engineering design.This chapter reviews a wide range of slope movement processes and classifies them based on features relevant to recognition, avoidance, control, or correction. While the 1958 classification of landslides has been widely accepted, it has been updated to include more recent data and classifications. The term "slope movements" is used instead of "landslides" to emphasize the broader range of processes. The classification includes types such as falls, topples, slides, spreads, and flows, with complex movements involving combinations of these types. Materials are categorized into rock and engineering soil, with soil further divided into debris and earth. The classification is not rigid, as slope movements can vary in type and material, and continuous gradation is common. Slope movements are classified based on the type of movement and the material involved. Falls involve rapid descent of detached material, while topples involve rotation about a pivot point. Slides include rotational and translational types, with rotational slides involving curved rupture surfaces and translational slides involving planar surfaces. Spreads involve lateral extension, and flows involve movement of materials as a fluid. Complex movements combine multiple types. The chapter discusses various types of slope movements, including falls, topples, slides, spreads, and flows, with detailed descriptions of each. It also covers lateral spreads, which involve lateral extension, and flows in bedrock and debris. The classification includes examples of different types of flows, such as debris flows, mud flows, and earth flows, which can vary in speed and water content. The chapter also addresses the importance of understanding these movements for engineering and geological applications, highlighting the need for precise terminology and classification to ensure accurate analysis and control. The classification is based on the type of movement and material, with a focus on the distinction between rotational and translational slides. The chapter concludes with a discussion of complex movements and their significance in slope stability and engineering design.