Book excerpt: Thermal Desalination Processes is a component of Encyclopedia of Water Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. These volumes discuss matters of great relevance to our world on desalination which is a critically important as clearly the only possible means of producing fresh water from the sea for many parts of the world. The two volumes present state-of-the art subject matter of various aspects of Thermal desalination processes such as: Multi-Stage Flash evaporation (MSF) and Multi Effect Distillation (MED) and Mechanical / Thermal Vapor Compression, in addition to the Hybrid Desalination Systems. Chemical Dosing For Desalination; Control Scheme of the Plants; Steady-State Model; Steady-State Simulation; Dynamic Model; Economics and Performance of Desalination Plants. Theses volumes are aimed at the following five major target audiences: University and College Students Educators, Professional Practitioners, Research Personnel and Policy and Decision Makers.