From the Publisher. Architecture must pool the efforts of several sciences: biology for a definition of the measure and purpose of comfort requirements; meteorology for a precise description of the existing climatic conditions; the engineering sciences for a rational solution and execution. Using the findings from these other sciences and applying them to four distinct climate regions—temperate, cool, hot-arid, hot-humid—Victor Olgyay shows how we can arrive at new interpretations and exactness in architectural theories of orientation, shading, building form, air movements, site location, and effects of materials. His findings suggest new and exciting regional expressions and diverse patterns for town layouts.