Sakis Totlis has put his magnificent book on the visual approach to
the Changes on the internet:

http://www.sakistotlis.gr/english/c.%20philosophy/c.2%20i%20ching/a%
20text(s)%20i%20ching.htm

"The I Ching contains 384 lines (192 broken yin lines and 192
unbroken yang lines) built in sets of six into sixty-four hexagrams.
For the unacquainted reader, both the hexagrams and the individual
lines seem very simple, crude, and prosaic and on first glance they
do not trigger the imagination; neither do they seem to contain any
significant visual ideas. That's true. At first they look indifferent
if not stark and ugly or even repulsive. Yet, for the initiated eye,
a whole world is alive in the sixty-four hexagrams, full of many
extremely interesting secret images discovered one by one with
pleasure. This is the secret charm of the I Ching. This is the charm
of poetry, too: the discovery of pictures and meanings hidden within
artfully abstract insinuations, pictorial or verbal."

How true!

Tom