This document provides an overview of user experience (UX) design. It discusses the different roles in UX like information architecture and interaction design. It explains that UX focuses on the end user and involves stakeholders, clients, customers, and developers. UX is about usability and ensuring a product is useful to the user. The document outlines various aspects of UX like affordances, utility, and mobile UX differences. It provides examples of app redesign projects and prompts students to select apps to redesign for a class project on improving the user experience.