He was a professor of prehistory and quaternary geology at the Science Faculty of Bordeaux. He decisively renewed the approach of focusing on prehistoric lithic industries, introducing statistical studies in typology and expanding the use of experimental flint knapping. He was known among archaeologists throughout the world for his ability to replicate ancient stone implements.
He also published many science fiction novels under his pen name. His books have not been translated into English. On the other hand, in USSR the science fiction of Carsac was very popular.
He was translated and published into Russian as well as Romanian, Bulgarian, Lithuanian, Latvian, Hungarian, Estonian amongst others.