Title: Only a Trillion [14 essays]
Description: Collection of science essays. It was the first collection of science essays published by Asimov. The book was also published under the title *Marvels of Science* 

- The Atoms That Vanish (first published in Change!, 1957)
- The Explosions Within Us (original article)
- Hemoglobin and the Universe (first published in Astounding Science Fiction, Feb. 1955)
- Victory on Paper (first published in Astounding, Sept. 1955)
- The Abnormality of Being Normal (first published in Astounding, May 1956)
- Planets Have an Air About Them (first published in Astounding, March 1957)
- The Unblind Workings of Chance (first published in Astounding, April 1957)
- The Trapping of the Sun (first published in Astounding, May 1957)
- The Sea-Urchin and We (first published in Astounding, July 1957)
- The Sound of Panting (first published in Astounding, June 1955)
- The Marvellous Properties of Thiotimoline:
- The Endochronic Properties of Resublimated Thiotimoline (first published in Astounding, March 1948)
- The Micropsychiatric Applications of Thiotimoline (first published in Astounding, Dec. 1953)
- Pâté de Foie Gras (first published in Astounding, Sept. 1956)
Subjects: Science, Essays