This is another competent journalistic survey of mankind's most recent attempts to make human space flight an ultimate reality. Written by a man who has at least a score of books on science subjects to his credit, it summarizes briefly for the layman the early history of rocketry and all its developments since the V-1s and V-2s of the last war. There are brief descriptions of the nature of rocket fuels, radiation belts, guidance procedures, testing methods, balloon satellites, and the experimental rocket ship X-15. Especially interesting is the description of the problems facing the American aeronauts in training for Project Mercury, the program designed to put man into space. A volume to interest the novice, student or adult layman without a technical background.