The crystallization of one or multiple salts in porous media (rocks, soils, building materials, etc.) is a subject of major interest in connection with numerous issues such as soil salinization, evaporation, CO2 injection into saline aquifers, the durability of building materials and the preservation of our cultural heritage. Salt Crystallization in Porous Media provides an interdisciplinary review of the key scientific knowledge required to understand this field of research, and illustrates the issues involved through a series of concrete examples. This book has been written for students completing their Master's level degree or higher in the field, as well as researchers and engineers interested in this research. It may also be of interest to a wider readership, as certain sections can be used to illustrate basic concepts, reaching beyond the subject of salt crystallization itself.