The "Pendulum Books" by Frank Glahn are probably the most comprehensive work on pendulum dowsing ever created. There seems to be no aspect that he does not cover in his six-volume series. He truly motivates everyone to learn pendulum dowsing and illustrates all the important fundamentals and advanced techniques. Frank Glahn himself was so successful with the pendulum that he was even called upon and recognized in criminal matters before the oath and district court. Glahn dowsed nearly everything concerning his personal life. This is reflected in his extensive and unparalleled wealth of experience, which he conveys in an accessible and straightforward manner—easy for anyone to understand—in his books. Each volume thoroughly addresses a particular area, and many illustrations facilitate comprehension. From metal, mineral, plant, body, soul to spiritual dowsing, the reader receives an exceptionally thorough pendulum education that enables them to conduct all conceivable pendulum experiments on their own.

The Use of the Pendulum (Volume I)
In this volume, you will receive a thorough introduction that teaches from the ground up how to handle the pendulum. Not only beginners but also advanced users can learn a lot here.

Contents: The use of the pendulum, radiant matter, what is the indicating pendulum, who can dowse, pendulum devices, a fundamental experiment, radiating forces in humans, dowsing a person, shape and composition of the pendulum, pendulum tests, spiritual involvement, the supernatural realm, training to become a dowser, the first experiments, and much more.