The current edition of the book will enhance the knowledge fund of the students of physiotherapy. This book enlightens the basic electricity and magnetism; electrical safety; electric shock and its management; low-, medium-, and high-frequency currents; therapeutic ultrasound; low- and high-power laser; infrared therapy; ultraviolet radiation therapy; extracorporeal shockwave therapy; targeted radiofrequency therapy; electromagnetic field therapy; transcranial magnetic and direct current stimulation; biofeedback; and many more. Electrodiagnostic tests and their interpretation have also been highlighted. A total number of 505 multiple choice questions (MCQs) with appropriate answers have been included, which cover almost every aspect of electro- and actinotherapy, which will help the reader for various competitive examinations.