Demonology is a specific literary genre that involves explaining all aspects of the relationship that takes place between Satan and his demons on the one hand and human beings on the other. The book “The Hammer of the Witches” is just about this. There is clearly not enough books in Russian about how this text works, why it was written, how it was received and where it was used. Gregory Backus, a medievalist historian, an expert in medieval demonology and the author of the book you are holding in your hands, will tell the reader in detail and clearly about the “Witches Hammer”, its history and how it influenced the lives of many people. In PDF A4 format The publishing layout of the book has been preserved.