All that makes this planet special is largely attributable to liquid water. Water in one form or another is found all over our planet, even encountered at depths of thousands of meters within the rocky crust. With a history of around four billion years, water has been around since the early days of Earth. Its presence in large amounts is unique to our planet, as are the outcomes and products of the water-involved geological processes. If Earth is to us a friendly home, it is thanks to all that water has created.Global Water Dynamics, written by renown geologist Emanuel Mazor is a unique book that deals with the global water systems via observations and multi-parametric physical, chemical, and isotopic measurements taken from a large number of springs and bore holes around the world.The obtained data leads to conclusions and working hypotheses that provide us with the detailed understanding of studied systems. It also allows us to see the forest beyond the trees, the global system of inter-related systems. These include recent cycling groundwater, connate water entrapped in sedimentary basins, as well as thermal and volcanic water systems, and the occurrence of petroleum deposits. The presented data and discussions lead to first principles analyses, as well as a long list of practical lessons.The content of this book addresses experts in the relevant fields, as well as university students in the earth sciences, hydrology, geology, petroleum exploration and exploitation, and environmental management and education.