This book on the Tripurārahasya, a South Indian Sanskrit work which occupies a unique place in the Śākta literature, is a study of the Śrīvidyā and Śākta traditions in the context of South Indian intellectual history in the late middle ages. Associated with the religious tradition known as Śrīvidyā and devoted to the cult of the Goddess Tripurā, the text was probably composed between the 13th and the 16th century CE. The analysis of its narrative parts addresses questions about the relationships between Tantric and Purāṇic goddesses. The discussion of its philosophical and theological teachings tackles problems related to the relationships between Sākta and Śaiva traditions. The stylistic devices adopted by the author(s) of the work deal uniquely with doctrinal and ritual elements of the Śrīvidyā through the medium of a literary and poetic language. This stylistic peculiarity distinguishes the Tripurārahasya from many other Tantric texts, characterized by a more technical language. The book is intended for researchers in the field of Asian Studies, Indology, Philosophical, Theological or Religious Studies, Hindu Studies, Tantric Studies and South Asian Religion and Philosophy, in particular those interested in Śākta and Śaiva philosophic-religious traditions.