Rocks, dissolution and karst -- Sinkhole classification and nomenclature -- Rock failure in collapse and caprock sinkholes -- Soil failure in subsidence sinkholes -- Buried sinkholes and rockhead features -- Sinkholes in insoluble rocks -- Rock failure under imposed load over caves -- Sinkholes induced by engineering works -- Ground investigation in sinkhole terrains -- Hazard and risk assessment of sinkholes -- Prevention and remediation of sinkholes -- Construction in sinkhole terrains -- Case studies.