*Our Planet* is the third volume in the popular encyclopedia series *The Joy of Discovery*. It offers a comprehensive overview of many vital aspects of Earth's structure and the life it sustains—our shared home. The book explores ways to study, explore, and sustainably utilize land and water areas, natural resources, and the environment to support the ever-growing human population. Today, these issues are among the most pressing global challenges, affecting the interests of all nations, regions, and peoples worldwide. The book addresses critical topics such as raw materials, energy, food security, and environmental health, emphasizing the importance of responsible natural resource management for both current and future generations. These concerns form the core of Earth sciences, which examine our planet from multiple perspectives—on land and across the oceans. What sets *Our Planet* apart is its wide-ranging coverage of complex issues and the use of extensive factual material. The book’s informativeness is greatly enhanced by original, visually engaging illustrations that bring the content to life. *Our Planet* is the third volume in the *Joy of Discovery* series. It focuses on Earth and how humans utilize it, covering questions of greatest relevance and interest—from the planet’s structure to the challenges of feeding ourselves in the future. The material is presented in a clear, accessible manner, richly illustrated to appeal to a broad audience, while striving to provide a logical, cohesive overview—carefully avoiding random facts to ensure clarity and understanding.