This document provides an overview of user-centered design. It discusses that user experience has multiple layers, from surface level visual design to deeper strategic considerations. The core of user-centered design is an iterative process of discovery, design, and evaluation. Key activities in this process include user research like surveys, interviews and card sorting to understand user needs and develop personas. Insights are used to create prototypes and test designs through methods such as usability testing, A/B testing, and tree testing to evaluate the design. The goal is to design solutions that meet user needs and are enjoyable, easy to use and useful.