Religion, Eugenics, Science and Mathematics by Karim F Hirji examines the dynamic relationship between religion, on the one hand, and science and mathematics, on the other, on historical and conceptual grounds. It focuses on Hinduism, Buddhism, Christianity, Islam, and various shades of secularism, including Marxism. Where relevant, other faiths are integrated into the analysis. The questions it addresses include: Are religion and science mutually exclusive, opposing entities? Do divine beings and divine realms exist? Are science and religion valid but different forms of truth? What are the societal roles of science and religion? Can science provide a tenable, exalted code of ethics? What are the futures of religion and science? Can religion and science cooperate in resolving the daunting, existential problems facing humanity today? All issues are explored in an interdisciplinary, historical manner. Examination of the religious dimension of the doctrine of eugenics, which culminated in the Nazi-era extermination pogroms, forms a major case study in the book. Among other things, the book peruses scriptures, explores the practice, enjoins analysis with anecdotes, and contrasts the beliefs of scientists and religious luminaries. Though it is directed toward the general reader, its novel approach, broad consideration of social and economic factors, and the nature of the evidence it has marshalled make it of interest to theologians and scientists as well. Religion, Eugenics, Science and Mathematics builds on the foundation laid in Religion, Politics and Society by Karim Hirji. In addition to eugenics, by relating religion to mathematics, genetics, neurology, climate change and other issues, the book reveals that the relationship between religion and science is a complex, entangled knot, not reducible to a simplistic summary. The ultimate message of the book is that science and religion can exist harmoniously on the moral plane and that the primary obstacle facing human progress today is neither religion nor science but the dominant neoliberal system that generates vast inequality, deep social divisions, including religious divisions and a callous disregard for the global biosphere.