This book is a general introduction to space propulsion physics. Author explains the problems and issues of the current space propulsion rocket based on their performance, and introduces a field propulsion theory that surpasses this. Further, the navigation theory for intergalactic or interstellar travel by the field propulsion is treated. As a representative example of field propulsion, space drive propulsion theory, i.e., General Relativistic Field Propulsion is introduced: by a pressure thrust based on the mechanical structure of space. Furthermore, the propulsion concept due to the expansion of the local space from the cosmological point of view is explained. While, Quantum field propulsion from the viewpoint of quantum field theory is introduced. As this example, the possibility of field propulsion by superstring theory is introduced. In the end, the propulsion concept using the most important accretion disk mechanism in astrophysics is discussed. In this way, this book surveys the field propulsion features from the viewpoint of propulsion theory in general by the author who constructed the concept of field propulsion, and covers the feasible theory of interstellar flight.