This book 'GEOTECHNICAL ENGINEERING' offers a straightforward and accessible overview of geotechnical engineering, emphasizing its practical applications in civil engineering. The book delves into the engineering classification, characteristics, and behavior of soils essential for designing and constructing foundations and earth structures. It covers key topics, including Geology, Landforms, and the Genesis of Geomaterials. The latest edition incorporates updates on Introduction, Soil Classification, Permeability, Seepage, Soil Compaction, Soil Consolidation, Shear Strength of Soil, Stabilization of Soil, And Conclusion.