This practical handbook of properties for soils and rock contains, in a concise tabular format, the key issues relevant to geotechnical investigations, assessments, and designs in common practice. Featuring an extensive database of correlations for different applications, the book provides a useful bridge between soil and rock mechanics theory and its application to practical engineering solutions. The initial chapters discuss the planning of the geotechnical investigation, the classification of the soil and rock properties, and common testing methods. Later chapters show the reliability and correlations that are used to convert the data. The final chapters apply some of these concepts to geotechnical design.