The Malleus Maleficarum — Montague Summers

This is one of the most notorious books in history. Thousands of innocent people, especially women, lost their lives at the expense of this book. It was first published around 1489, shortly after the invention of the printing press and five years after a papal bull was issued legitimizing the belief in witches. It went through at least 30 printings and became the handbook for witch hunters, both Protestant and Catholic. It gave permission to bishops and secular authorities to prosecute witches if there were no representatives from the Inquisition around, giving full directions. After the witch trials swept through Europe, some villages were left with as few as two women. So if this book is so bad, why should one read it? Because there are lessons to be learned, both psychologically and historically, and there is an ignorance to overcome. This is a fascinating study of mass hysteria, greed, and delusional behavior.