The Great Knowledge is a cumulative treasure trove of information on magical and spiritual practices described in written sources dating back to the Iron and Viking Ages. Maria Kvilhaug provides a wealth of source material shining new light on the lore of old, the roles and practices that existed, healers, sorcerers, shapeshifters, berserkers, poets, initiation rites, the genderfluid, and the influence and invocations of spirit beings in the shapes of gods, trolls, giants, elves, norns. For those who have sought accurate, historical, and fact-based information on Seiðr, Volva's, Galdrar, and more, The Great Knowledge is the book that you have been waiting for.