The Original I Ching Oracle is Ritsema’s revised version of the Eranos Yijing, first published in 1994 with Stephen Karcher, as ‘I Ching, the Classic Chinese Oracle of Change, the First Complete Translation with Concordance.’ I owe a huge amount to that book: it first gave me license to absorb the words, internalise a reading, without being told what it meant or what to do. Without that initial freedom, I doubt I would ever have been drawn to the Yi at all. So I really have Ritsema and Karcher to thank for this website and my work.