Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Extraterrestrial: The First Sign of Intelligent Life Beyond Earth | 2021 | Avi Loeb | Buy |
| 2 | Interstellar: The Search for Extraterrestrial Life and Our Future in the Stars | 2023 | Avi Loeb | Buy |
Avi Loeb’s two non-fiction books form a connected argument for taking the search for extraterrestrial intelligence seriously. Extraterrestrial (2021) introduced his ideas to a general audience, centering on the ‘Oumuamua controversy. Interstellar (2023) picked up from there, describing his ongoing research and the equipment he has built to look for physical evidence.
Both books are written for general readers rather than specialists, making complex astrophysics accessible through personal storytelling and clear explanations. They can be read independently, though Interstellar builds on ideas introduced in the first book.