Social and organizational changes arc generated in any society that introduces, and absorbs, technical advantages. Recently, the results from experiments with more than 200 replica and reconstructed tools indicate the development of interrelated technology, tools and materials in key areas during the Predynastic period (ca. 4500-3050 ВС) of ancient Kgypt. These experiments also suggest that later evolutionary changes to the designs of particular tools significantly increased the production rates of artifacts, giving impetus to the creation of increasing amounts of material wealth. This book attempts to explain what these technical introductions, tools, materials and relationships were, and how the development of technology and с raft working generated social and organizational changes to Predynastic and Dynastic Egyptian society.