This document discusses the process of wireframing web apps. It begins by introducing the concepts of discovery, ideation, prototyping, and usability. During the ideation phase, the document advocates for sketching using paper as it allows for rapid iteration. Some benefits of sketching outlined include being timely, disposable, and inviting feedback. The document then shifts to discussing interactive prototyping using tools on the browser, noting its benefits for demonstrating behaviors. Throughout, it emphasizes the importance of diverging during ideation before converging on solutions during prototyping.