If you are serious about studying the I Ching, Alfred Huang’s version is considered a "desert island" book—a text you would want to keep with you. While a free PDF is hard to find legally, using the or the Google Books preview is an excellent way to access his insights without immediate cost.
: Deep dives into how the 64 hexagrams connect to one another through an "intricate web of interrelations". Digital and Physical Versions
Accompanied by its literal translation and pronunciation.