Book excerpt: With their ability to enter trances, to change into the bodies of other creatures, and to fly through the northern skies, shamans are the subject of both popular and scholarly fascination. In Shamans: Siberian Spirituality and the Western Imagination Ronald Hutton looks at what is really known about both the shamans of Siberia and about others spread throughout the world. He traces the growth of knowledge of shamans in Imperial and Stalinist Russia, descibes local variations and different types of shamanism, and explores more recent western influences on its history and modern practice. This is a challenging book by one of the world's leading authorities on Paganism.