• First published in Great Britain by Frederick Muller Ltd in 1954.
• Includes 45 plates, 8 colour, by R. A. Smith. List of plates included.
• Introduction [pp. 7-11] and Epilogue [p. 112] by Arthur Clarke.
• Short "Acknowledgements" section, apparently by R. A. Smith, expressing his indebtedness to H. E. Ross.
• Separated into four parts: I. On the Frontiers of Space; II. To the Moon; III. The Pioneers; IV. The Colonists. Each has a short introduction.
• The rest of the book consists of two-page units: plate by Smith on the right, title and text by Clarke on the left.