I Ching
Concise Oxford English Dictionary © 2008 Oxford University Press:
I Ching /iː ˈtʃɪŋ/
▶noun an ancient Chinese manual of divination based on eight symbolic trigrams and sixty-four hexagrams, interpreted in terms of the principles of yin and yang.
– origin from Chin. yijing ‘book of changes’.
'I Ching' also found in these Oxford entries:

