Interplanetary Flight: An Introduction to Astronautics[1] is a short, modestly technical introduction to space exploration written by Arthur C. Clarke, and published in 1950. It includes material accessible to readers with a high-school level of science and technical education, covering the elements of orbital mechanics, rocket design and performance, various applications of Earth satellites, a discussion of the more interesting and accessible destinations in the Solar System (such as they were understood at the time of writing), and in a final chapter covering the rationale and value of human expansion off the Earth.
The book includes ten chapters:
A short mathematical appendix is provided (for the benefit of readers not versed in the calculus), plus a bibliography and index, for a total of 164 pages. It includes also many figures and diagrams, and 15 plates (now largely of historical interest, showing how far space exploration has advanced since 1950).