This document discusses paper prototyping for UX design. It defines paper prototyping as a working version of a product that anyone can try and provide feedback on. The purposes are to quickly validate concepts, improve design decisions, communicate ideas, gather user feedback, and explore unknown aspects of the design. Benefits include lower costs than fully developed prototypes, and allowing the exploration of interactivity and user journeys. The document outlines experiential and tactical types of paper prototyping and describes a workshop where participants developed paper prototypes for an app to discover places to visit in Johannesburg.