Imagining karma studies how rebirth eschatology evolves into karma eschatology. Eschatology is ideas about life after death. Rebirth is the theory that the dead return to the living. Karma is the theory that the return of the dead depends on moral conduct. This study reviews ethnography of aboriginal Australians, Amerindians of the Northwest Coast, Trobriand Islanders, and West Africans; ancient Greece and Rome; and Hinduism and Buddhism in India and Bali. Obeyesekere looks for how theories of rebirth confront theories of karma in these societies. He creates four concepts to study variations on this confrontation. Theories of rebirth are grounded in "species sentience" (first concept), which is the primordial assumption that "animate existence constitutes a single order held together by common sentience, both physical and spiritual." (45). The universal fact of human wrongdoing everywhere confronts species sentience, resulting in the "ethicization" (second concept) of rebirth. Ethicization means that "putting soul-possessing human beings at the center of creation erodes the idea of animal rebirth and subverts any prior doctrine of species sentience." (318) Ethics, introduced into rebirth eschatology, must transform it into karmic eschatology. The complication of species sentience by ethicization makes for continuous debates in native societies. These debates change the religion by "conceptualism" (third concept), which means that "once a new concept has been developed, it must loop back into earlier concepts and infuse them with further meaning and significance." (129) Debaters practice "axiologization" (fourth concept): "deliberate and self-conscious transfiguring of local, preexisting, or contending values...gives [these values] deeper ethical and symbolic significance, often universal, even cosmic in scope." (174). His scholarly writing treats the ethnographic data in minute detail and is comprehensive about the literature. Written for anthropologists, the style is often precious. For examples, chapter 7 is entitled, "Imprisoning frames and open debates." People who are not used to exquisite references to extinct and scholarly writings in academic seminars will be impatient, but the portrayal of the evolution of primitive, archaic, and historic religions is very satisfying.