Introductory technical guidance for civil and geotechnical engineers and construction managers interested in design and construction in rock masses. Here is what is discussed:1. GEOLOGIC DESCRIPTIONS2. ROCK MASS CLASSIFICATION3. SHEAR STRENGTH4. ROCK FAILURE CHARACTERISTICS5. FAILURE CRITERIA6. SHEAR STRENGTH TESTS7. SELECTION OF DESIGN SHEAR STRENGTH PARAMETERS8. DEFORMATION AND SETTLEMENT9. TEST METHODS FOR ESTIMATING MODULUS10. OTHER METHODS FOR ESTIMATING MODULUS11. CONSIDERATIONS IN SELECTING DESIGN MODULUS VALUES.