This second edition of a hugely important work on this subject still plugs a gap in the literature. It is a source of crucial support to the planner in the design of solar assisted air-conditioning systems, which use solar collectors as a heat source. Air conditioning contributes significantly to the energy consumption of buildings in many countries and a promising possibility for energy reduction is the use of solar thermal energy in solar-assisted air conditioning systems. However, until today only a few systems have been installed world-wide and design and operation experiences are fairly poor.