This short seminar series is a thematic and historical introduction to Hindu tantric traditions. Beginning with a survey of general features such as systems of mantra, ritual, cosmology, and yoga, we will then go on to examine particular tantric traditions focused on Shiva, Vishnu, and the Goddess. The seminars will mainly explore the medieval period and examine tantrism in the context of political systems of the time, folk religion, traditions of brahmanical learning, and knowledge systems. Part of the seminars will focus on the study of particular texts and reasoning about them with an emphasis on understanding their theological concerns.