The Book of Forbidden Knowledge

This book is a collection of information on magical rituals and beliefs and tons of practical advice on how to use chips of magic in everyday lives. There, you can find advice on how to receive oracles by dreams and how to predict future events, lists of lucy and unlucky days and even hours of every day in a calendar, tips on how to read dreams and tokens, or how to use a love letter to learn whether the intentions of its sender are true.
There are separate chapters in the book dedicated to growing prosperous and happy marriage, understanding omens, secrets of black magic (like rituals for lucky cards playing), the art of fortune-telling by transposition of names, talismans, methods of hypnosis, and element of electrical psychology or tips on how to make another person think of you on the distance.