Amateur-Built and Experimental Aircraft: Design, Construction, and Operation is a comprehensive guide to one of aviation's most dynamic and innovative sectors. Blending technical knowledge with real-world application, the book explores how individuals design, build, test, and operate aircraft outside traditional factory production and certification systems, continuing a long tradition of innovation that has shaped aviation from its earliest days to the modern era.The text provides a structured pathway through the complete lifecycle of an amateur-built aircraft, from foundational concepts and international regulatory frameworks to detailed construction techniques and system integration. Readers are guided through materials selection, airframe construction, propulsion systems, avionics, inspection processes, and flight testing, with clear explanations that effectively bridge theory and practice. Recognising the global nature of homebuilt aviation, the book examines regulatory approaches across the United States, Europe, the United Kingdom, Canada, and Australia, highlighting how different frameworks balance safety, responsibility, and operational flexibility.Beyond technical instruction, the book captures the human side of aviation. It reflects a global community of builders, with an estimated 30,000 to 40,000 amateur-built aircraft currently flying worldwide and many more under construction. For many, building an aircraft is a deeply personal achievement, offering opportunities to reduce costs, customise performance, and develop valuable technical skills. Supported by strong communities and organisations, builders engage in a collaborative culture that promotes learning, problem-solving, and innovation.While building an aircraft requires time, precision, and commitment, modern kits and support networks have made it more accessible than ever. With insights into emerging technologies such as electric propulsion, hybrid systems, and advanced materials, this book also looks to the future of experimental aviation. Ideal for builders, pilots, students, and enthusiasts, it provides the knowledge, context, and confidence to understand, and potentially participate in, this unique and rewarding field.