The Great Pendulum Book by Petra Sonnenberg

Discover exactly how the pendulum works, what types are best for specific needs, how to set them in motion, which questions to ask, how to find out your "individual code" for judging the pendulum's oscillations, and how to get mentally ready for a session with this valuable tool. Whether you want to know how to handle an allergy, which tarot card will be your helper, or what kind of apartment is right for you, the answer is in the pendulum.