The I Ching (Classic of Changes or Book of Changes), also known as the Yi Jing, Yijing, or I Ging, is one of the Five Classics, the fundamental books of Confucianism. It is over 3000 years old (the symbols used in divination are over 5000 years old), making it both one of the oldest surviving books in the world, and one of the oldest forms of divination. It is by far the most popular spiritual resource and oracle in Asia.