The book begins with a historical overview of geothermal energy and its scientific principles. It then progresses to the practical aspects of system design, including site assessment and ground loop configurations. Real-world case studies demonstrate successful installations in various climates. A unique feature is its focus on practical step-by-step guidance for planning, designing, and installing geothermal heat pump systems, making it a valuable resource for homeowners, building professionals, and policymakers interested in sustainable energy.