"Hammer of Witches" - is the reference book of the Holy Inquisition, treatise on witchcraft, written by the catholic inquisitor Heinrich Kramer. "Hammer of Witches" was written in Latin; the full Latin title sounds as "The Hammer of Witches which Destroyes Witches and their Heresy as with a Two-Edged Sword". This book disproves all the possible proofs that the witchcraft does not exist. In fact, this book is a manual for finding the witches, convicting them, proving their guilt and passing sentence on them.