This accessible book is full of concrete examples for professionals, students or individuals. Like this start-up whose robot builds brick walls or the one that helps you finance your contribution, nearly a hundred start-ups in europe, the united states but also in china are listed. They are the ones who change the way of financing, building , managing or occupying real estate. This book will show you that it is possible to organize this market differently through concrete cases. The strong point lies in the very rich enumeration of digitization players (digital) who want to 'disrupt' the market. It happens very often on the american market, more liberal but not only.