This book is a story of the life and work of Konstantin Tsiolkovsky, a celebrated scientist and inventor, the father of modern rocketry. He devoted most of his energies to the solution of three scientific and engineering problems: the all-metal dirigible, the aeroplane and the rocket. The most vital and progressive of his discoveries are those dealing with the theory of rocket propulsion. His designs of reaction devices, his methods of studying the dynamics of rocket flight and research into the possibilities of interplanetary travel have become widely known and have won world recognition.
Interesting and surprisingly in layman's terms. (Pretty elementary stuff, starting with dirigibles/Zeppelins and the basics of considering travel outside of the Earth's atmosphere) At age 18 I understand this book, except for a few mathematical equations I glanced over instead of seriously considering.
"This planet is the cradle of human mind, but one cannot spend all one's life in a cradle."