This chapter provides a comparative analysis of modern and classical tools used for assessing forest degradation. It begins by defining forest degradation and its global impacts. The chapter then discusses the causes of forest degradation, such as logging, fire, pests, and climate change. Classical tools like ground-based surveys and aerial photography are compared with modern tools like satellite imagery, light detection and ranging (LiDAR), and geographic information system (GIS)-based systems. The chapter emphasizes the need for adaptive management approaches that respond to the data and can mitigate the impacts of degradation. It concludes with recommendations for integrating modern assessment tools into forest management practices. This investigation serves as a valuable resource for forest managers, policymakers, and researchers.