There is no single book on aerospace engineering which covers basics of aircraft, rockets and spacecraft at one place. The information on these topics is very much scattered. As aerospace engineering is multi-disciplinary in nature, only a strong foundation on different areas will help readers in judiciously designing aerospace components. The book deals with fundamentals of aircraft, rockets and spacecraft. The topics discussed are from the discipline of aerodynamics, propulsion, performance, stability, control, structures, orbital mechanics and spacecraft subsystems. The text is presented in lucid style with suitable illustrations and practical examples. This will lay not just a strong foundation for the readers but also creates an interest in pursuing a career in aerospace engineering. For the benefit of readers, relevant mathematics chapter is included in the beginning as this will help in understanding aerospace concepts presented in later chapters. The book also introduces to advanced topics in aerospace engineering such as space debris, smart structure, turbulence, rendezvous and docking, multi disciplinary design optimization and manned flight. The book is certainly useful for students who are getting introduced to aerospace engineering. Additionally, it is helpful for practicing aerospace engineers who are working in one domain and would like to grasp concepts from other domains.