Prototyping is a crucial stage in the product design process, allowing teams to validate ideas, gather feedback, and iterate on designs before final implementation. In this comprehensive guide, we explore the different types of prototypes, from low-fidelity paper prototypes to high-fidelity interactive prototypes. We discuss the benefits of prototyping, including reduced time to market, increased stakeholder buy-in, and enhanced user satisfaction. Through real-world examples and best practices, we showcase how leading companies leverage prototyping to accelerate innovation and deliver exceptional user experiences.