Mass balancing is only one remedial action for excessive vibrations from machines. The complete list of field corrective methods is: Replacing the defective or worn part, Mass balancing, Alignment, Resonance fixes and Isolation. The majority of mass balancing is done today by craftsmen and technicians. In this context, the present volume covers the topic from a practical perspective. Theory and engineering are illustrated from a nonmathematical point of view where possible. The present volume presumes no prior knowledge and can stand alone as a balancing study guide reference book.