This document provides an overview of the types of documentation created at each stage of the user experience design process. It discusses documentation for product definition, research, analysis, design, implementation, launching a live product, and measuring/iterating. For each stage, it describes common documentation deliverables and gives examples from companies like Apple, Twitter, Amazon, and UXPin. The key message is that documentation should complement and guide the design process, rather than just be paperwork. It should inspire and move the design forward.