Aiki is the power of harmony, of all beings, all things working together.Aikidoa modern Japanese martial art unique in its synthesis of classic forms with a welldefined spiritual baseoffers a key to the art of living naturally and unselfishly in a complicated world. This book explains it in reference to the founders philosophy of mindand action. In addition, the history of aikidos prewar development as a noncompetitive new martial art is described, with a consideration of its international role.