Bashir's scholarship offers one of the first substantial studies of this complex and delicate topic. Showing mastery of its sources, it surveys Qur'anic exegesis, Islamic jurisprudence, and modernist reasoning to explore shifting perspectives on slavery in Islamic thought, and the viability of an "Islamic abolitionism". This is a bold leap forward in the field, written with both precision and ambition. It has acute relevance in a world that has seen the re-imposition of "Islamic" enslavement practices through Islamic State and other groups on the one hand, and an increased recognition of the global legacies of systems of slavery on the other. Moreover, the book has direct bearing for how complex issues arising from classical Islamic jurisprudence might be productively reformulated in contemporary times.