About the author
Théodore Flournoy (1854-1920) was a Swiss psychologist and philosopher who held a professorship at the University of Geneva and was among the founders of scientific psychology in French-speaking Switzerland. He is best known for From India to the Planet Mars: A Study of a Case of Somnambulism, his 1900 study of the medium Hélène Smith, whose trance performances included apparent past-life memories of India and an invented Martian language. Flournoy analyzed the case with a psychologist's skepticism, treating Smith's productions as products of subconscious creativity rather than genuine spirit communication or extraterrestrial contact, and the book became an influential early study in the psychology of mediumship. It shaped later thinking on the unconscious, including the work of Carl Jung, who engaged with Flournoy's ideas. Current editions, including reprints from Legare Street Press and Cosimo Classics, keep this foundational text in print for readers of psychology and the history of spiritualism.
📖 Where to start with Theodore Flournoy
💬 What our editors say about Theodore Flournoy's books
“Flournoy presents a compelling case study that bridges the gap between spiritualism and scientific rationality. However, readers seeking modern empirical evidence or straightforward supernatural validation may find the historical…”
Esoterica Books editorial team, Occult literature desk · on From India to the Planet Mars: A Study of a Case of Somnambulism
“While Théodore Flournoy’s work is a seminal psychological study, it may not suit readers seeking straightforward supernatural validation or simple entertainment. The text is dense with early twentieth-century clinical terminology…”
Esoterica Books editorial team, Occult literature desk · on From India to the Planet Mars: A Study of a Case of Somnambulism
“Flournoy’s work is a fascinating, if dense, exploration of mediumship that demands patience from the reader. While its psychological framework was revolutionary for its time, modern readers may find the clinical detachment…”
Esoterica Books editorial team, Occult literature desk · on From India to the Planet Mars: A Case of Multiple Personality with Imaginary Languages - Ingram Academic Flournoy, Theodore
📋 Editions by Theodore Flournoy in the catalog
| Edition | Year | Publisher | Pages | ISBN |
|---|---|---|---|---|
| From India to the Planet Mars: A Study of a Case of Somnambulism | 2022 | Legare Street Press | 480 | 9781015689053 |
| From India to the Planet Mars: A Study of a Case of Somnambulism | 2022 | Legare Street Press | 480 | 9781015684294 |
| From India to the Planet Mars: A Case of Multiple Personality wi | 2016 | Princeton University Press | 388 | 9780691637358 |
| From India to the Planet Mars: A Case of Multiple Personality wi | 2015 | Princeton University Press | 388 | 9780691608990 |
| From India to the Planet Mars: A Study of a Case of Somnambulism | — | Cosimo Classics | 488 | 9781602063570 |
