re]TOKYO explores a wide, understanding vision of the transformative processes of one of the most influential and unknown metropolitan areas in the world, from large scale efforts such as Tokyo's land engineering transformations, to smaller examples such as its capital vending machine system. Four hundred pages, compiling 400 years of history, are covered in this uniquely Japanese complexity of social conurbation, including more than 1400 illustrations, diagrams, photographs, and maps in order to visually support selected themes. re]TOKYO develops the idea of re]definition processes to explain what, who, when, where, and why all these changes took place, concluding with a collection of the essential processes that comprehensively elaborate Tokyo's changes--a tool to understand its history and speculate about its future as an exciting metropolis and cultural center of the world.