Usability refers to the ease of use and learnability of a human-made object or software. Coursera's usability catalogue teaches you about the key principles of user-centered design and how to apply them to create effective, engaging, and accessible interfaces. You'll learn about the foundations of human-computer interaction, usability testing methods, as well as the development of user personas and journey maps. You'll also gain skills in prototyping, wireframing, and interface design. Whether you're a product manager, web developer, or UX/UI designer, or someone transitioning into these fields, understanding usability will be an invaluable tool in your toolkit.