The book of spirits is not a grimoire, and not the workbook of a witch or magician – it is an empowered object of immense potency that has the potential to act independent of its maker, or even against his desire, if carelessly handled. Merely to open the book is to summon a spirit. Which spirit is summoned depends on which page is opened. There is no requirement for elaborate rituals in order to use the book. Indeed, the greatest ritual care must be taken to seal and ward the book so that it cannot cause spirits to manifest spontaneously.Read the rest of this article by Donald Tyson here.