Reyner Banham tested the constructed setting of Los Angeles in some way no architectural historian sooner than him had performed, having a look with contemporary eyes at its manifestations of common style and business ingenuity, in addition to its extra conventional modes of residential and industrial construction. His assemble of “4 ecologies” tested the techniques Angelenos relate to the seaside, the freeways, the flatlands, and the foothills. Banham overjoyed on this cellular town and known it as an exemplar of the posturban long run. In a impressive new foreword, architect and student Joe Day explores how the construction of Los Angeles, the concept that of “ecology,” and the relevance of Banham’s concepts have modified over the last thirty-5 years.