This document provides an introduction to design thinking and prototyping. It discusses the key steps in design thinking, including empathizing with users, defining problems from their perspective, ideating solutions, prototyping ideas, and testing prototypes with users. Various techniques are covered, such as creating personas, mapping user journeys, defining points of view, brainstorming, and prototyping with different levels of fidelity. The importance of prototyping is emphasized as a way to facilitate communication, enable user input, assess feasibility, and reduce development time.