The foundation of Hindu law is the voluminous textual tradition called Dharmaśāstra, the expert tradition on dharma. This book seeks to delineate the historical development of Dharmaśāstra, even though the tradition presented dharma as timeless and ahistorical. The volume establishes the importance of law for the history and study of Hinduism by providing interpretive descriptions of all the major topics of Hindu dharma according to this tradition. First, two broad introductions to the historical development of the textual sources of Hindu law suggest new ways to understand both the original texts (smṛti) and the later commentaries and digests. Next, groundbreaking research into the origin of the householder (gṛhastha), who is at the center of the Dharmaśāstric enterprise, provides new insights into both the origin of this genre and many of its topics, such as the āśrama system and married household life. The book devotes its central chapters to each of the major topics of Dharmaśāstra: epistemology of dharma, caste and social class, orders of life, rites of passage, Vedic student and graduate, marriage, children, inheritance, women, daily duties, food, gifting, funeral and ancestral offerings, impurity and purification, ascetic modes of life, dharma during emergencies, king, punishment, legal procedure, titles of law, penances, vows, pilgrimage, images, and temples. The final chapters then explore both the reception of Dharmaśāstra in other religious traditions, both Hindu and Buddhist, and the relevance of Dharmaśāstra to studies of critical concepts in religious studies—the body, emotions, material culture, subjectivity, animal studies, and vernacular culture.