If you have an interest in the technology and theory of space travel, in the basic elements of astronomy to be understood as fundamental to travel in space, in a sufficient knowledge of the subject of physics required to understand the technical aspects of space travel, you will be interested in this book. The book is written with ample exercises that will take you step by step to each new level of understanding the immense undertaking that was Apollo 11. It is written with the idea in mind that even if you find some parts difficult, you can continue on and still understand the theory involved in the achievement that was the moon landing arid departure. You will be amazed at the immensity of the Saturn rocket that launched the Apollo crew into space. By the time you have progressed to the actual lift-off of Apollo from earth, you will understand rocket propulsion and trajectory in space, lofting requirements to place satellites in orbit, and the timing of the elliptical path of the moon in its orbit about earth. More importantly, you will be able to make all of the calculations required to do and to understand all of these maneuvers. You will have studied the basic laws that govern the motion of the planets about the sun and be able to calculate the vast distances that separate objects in space using the speed of light. You will make the final flight of Apollo back to earth and do the calculations that land the entry vehicle in the proximity of the Johnson Islands, but far enough from the Hawaiian Islands-to assure a safe landing in the Pacific Ocean.