Sartre's Existentialism and Early Buddhism: a comparative study of selflessness theories is written by Ven. Phra Dharmakosajarn. The current work is a revised version of Phra Dhrammakosajarn's Ph.D. thesis, A Comparative Study of the Non-egological Treatments of Consciousness in Sartre's Philosophy and Early Buddhism, which was completed in September 1985 at the University of Delhi, India. The goal of this research is to examine and contrast Sartre's idea of non-egology with Early (Theravada) Buddhism's thesis of self-lessness (anatta).