Volcanic Rock Mechanics includes papers and special lectures from the 3rd International Workshop on Volcanic Rocks, "Rock Mechanics and Geo-Engineering in Volcanic Environments", which was held within the framework of the Congress "Cities on Volcanoes6-Tenerife 2010" (Puerto de la Cruz, Tenerife, Spain, 31 May-4 June 2010). The book is a comprehensive collection of the most relevant topics related to rock mechanics and geo-engineering in volcanic environments.