If you are preparing for the Civil Engineering Licensure Exam, start with Chapters 2 (Phase Relations) and 4 (Effective Stress) of Besavilla. Master those, and you will have the confidence to tackle retaining walls, slopes, and footings. Good luck, and may your factor of safety always be > 1.0.
The book systematically covers core areas of geotechnical engineering, including: fundamentals of geotechnical engineering besavilla pdf
Analyzing slopes, embankments, and retaining walls. If you are preparing for the Civil Engineering
: This is the most comprehensive manual, often containing over 900 pages of theory and problems. A large portion is available on Scribd Geotechnical Engineering Solved Problems and footings. Good luck