This book is the third of a series highlighting this topic of major importance for recent developments in geodynamics. Temporal variation of deformation and gravity fields recorded by geodetic measuring techniques (either from ground surface or space) and reflecting isostatic, tectonic or volcanic processes in the earth's interior as well as hydrologic, oceanographic or climatic processes, have made a basic tool for research and monitoring. Part of the papers collected in this topical volume were presented at the 3rd Workshop on "Deformation and Gravity Change: Indicators of Isostasy, Tectonics, Volcanism and Climate Change" which took place at the Casa de los Volcanes on Lanzarote, Spain, during February 23-26, 2009. The book addresses researchers and graduate students in the Earth sciences, who are interested in surface and crustal processes, as well as geotechnical engineers.