This document discusses user experience (UX) design. It defines UX as encompassing all aspects of a user's interaction with a company, its services, and products. The history of UX is discussed, noting that Donald Norman popularized the term in the 1990s to be more encompassing than human interface and usability. UX collects all design aspects and usage, while UI focuses on visual design. UX design is about creating products that are useful, user-friendly, and pleasant to interact with. Various UX methods like usability testing, card sorting, and A/B testing are discussed to help achieve these UX goals.