The power of handgrip is the result of forceful flexion of all finger joints with the maximum voluntary force that the subject is able to exert under normal biokinetic conditions which uses several muscles in the hand and the forearm. The estimation of handgrip strength is of immense importance in determining the efficacy of different treatment strategies of the hand and also in hand rehabilitation. Grip strength determines the handedness of an individual, an important field of population variation study. It is often used as an indicator of overall physical strength, hand and forearm muscles performances and as a functional index of nutritional status, morbidity and mortality, physical performance. It is included in various motor ability measurement test batteries recommended for children. The present volume can be used as a ready reference in the fields of research related to hand anthropometry, hand surgery and rehabilitation, and handgrip strength training. I am sure that students, researchers and teachers of the related disciplines will be benefited heavily by this volume.