The outer box shows signs of aging, but the text itself is in good condition. This is the first edition, published in July 1986. A practical book for action, guiding accurate decision-making, by the master of I Ching! From Professor Naonori Yanashita's years of research and long experience in practical application, he clearly explains the "essence of I Ching" for use in modern times. A book coveted by researchers. Recycled materials will be used for packaging.