Michael Graeme has generously provided his own in-depth, line-by-line notes on the I Ching as a free download, here. I’ve only just started looking through this myself, but it’s clearly thoughtful, intelligent work, worth studying. Thank you, Michael!
Interesting, indeed. I didn’t know of the site and started browsing. There is a page that has a few essays on the Yi, here:
http://www.mgraeme.ic24.net/#*
Luis
Oops, that link doesn’t take you there but to the front page. They are found under Non-Fiction…