Ley, Willy
Alphabetical Checklist
- Another Look at Atlantis, and Fifteen Other Essays (Garden City, New York: Doubleday and Company, 1969)
- Beyond the Solar System (New York: Viking, 1964)
- Bombs and Bombing: What Every Civilian Should Know (New York: Viking, 1941)
- The Conquest of Space (New York: Viking, 1949)
- Conquest of the Moon (New York: Viking, 1953) with Wernher von Braun and Fred L Whipple
- The Days of Creation (New York: Viking, 1941)
- The Days of Creation (New York: Viking, 1952)
- Die Fahrt ins Weltall ["Journey into Space"] (Leipzig, Germany: Hachmeister & Thal, 1926)
- Die Fahrt ins Weltall (Leipzig, Germany: Hachmeister & Thal, 1929)
- Die Möglichkeit der Weltraumfahrt: Allgemeinverständliche Beiträge Beitrag zum Raumschiffahrtsproblem ["The Possibility of Interplanetary Travel"] (Leipzig, Germany: Hachmeister & Thal, 1928)
- Die Starfield Company: Ein technischer Zukunfsroman ["The Starfield Company: A Technical Scientifiction"] (Berlin: Frederich Fechner Verlag, 1929)
- Dragons in Amber: Further Adventures of a Romantic Zoologist (New York: Viking, 1951)
- The Drifting Continents (New York: Weybridge and Talley, 1969)
- Engineer's Dreams (New York: Viking, 1954)
- Events in Space (New York: David McKay, 1969)
- Exotic Zoology (New York: Viking, 1959)
- The Exploration of Mars (New York: Viking, 1954) with Wernher von Braun
- Gas Giants: The Largest Planets (New York: McGraw-Hill, 1969)
- Lands Beyond (New York: Rinehart and Company, 1952) with L Sprague de Camp
- The Lungfish and the Unicorn: An Excursion into Romantic Zoology (New York: Viking, 1941)
- The Lungfish, the Dodo and the Unicorn (New York: Viking, 1948)
- Missiles, Moonprobes and Megaparsecs (New York: New American Library, 1964)
- Project Mars (London: John Spencer and Co/Badger Books, 1962) with Wernher von Braun
- Ranger to the Moon (New York: New American Library, 1965)
- Rockets and Space Travel: The Future of Flight Beyond the Stratosphere (New York: Viking, 1947)
- Rockets, Missiles and Space Travel (New York: Viking, 1951)
- Rockets, Missiles and Space Travel (New York: Viking, 1957)
- Rockets, Missiles and Men in Space (New York: Viking, 1968)
- Rockets: The Future of Travel Beyond the Stratosphere (New York: Viking, 1944)
- Salamanders and Other Wonders: Still More Adventures of a Romantic Naturalist (New York: Viking, 1951)
- Satellites, Rockets and Outer Space (New York: New American Library, 1958)
- Satellites, Rockets and Outer Space (New York: New American Library, 1962)
- Shells and Shooting (New York: Viking, 1942)
- Visitors from Afar: The Comets (New York: McGraw-Hill, 1969)
- Watchers of the Skies: An Informal History of Astronomy from Babylon to the Space Age (New York: Viking, 1963)