The Engineering of Foundations, Slopes and Retaining Structures rigorously covers the construction, analysis, and design of shallow and deep foundations, as well as retaining structures and slopes. It includes complete coverage of soil mechanics and site investigations. This new edition is a well-designed balance of theory and practice, emphasizing conceptual understanding and design applications. It contains illustrations, applications, and hands-on examples that continue across chapters. Soil mechanics is examined with full explanation of drained versus undrained loading, friction and dilatancy as sources of shear strength, phase transformation, development of peak effective stress ratios, and critical-state and residual shear strength. The design and execution of site investigations is evaluated with complete discussion of the CPT and SPT. Additional topics include the construction, settlement and bearing capacity of shallow foundations, as well as the installation, ultimate resistance and settlement of deep foundations. Both traditional knowledge and methods and approaches based on recent progress are available. Analysis and design of retaining structures and slopes, such as the use of slope stability software stability calculations, is included. The book is ideal for advanced undergraduate students, graduate students and practicing engineers and researchers. Rodrigo Salgado is the Pankow Professor in Civil Engineering at Purdue University, Editor in Chief of the ASCE Journal of Geotechnical and Geoenvironmental Engineering , and author of over 150 journal publications, 100 conference publications, and 40 reports. He has supervised 30 Ph.D. students and was the recipient of prestigious awards, including the Sloan Best Paper Award, the ICE Geotechnical Research Medal, the Prakash Research Award, the ASCE Huber Research Prize, the ASCE Arthur Casagrande Award, and the IACMAG Excellent Contributions Award.