16 Books in the field of science, philosophy, mysticism, medicine, martial arts, economics, politics, ethics, sociology, aesthetics, acoustics, linguistics; booklets in the field of science, philosophy, mysticism, medicine, martial arts, economics, politics, ethics, sociology, aesthetics, acoustics, linguistics; handbook manuals in the field of science, philosophy, mysticism, medicine, martial arts, economics, politics, ethics, sociology, aesthetics, acoustics, linguistics; note books