Wow! You have been busy! I have studied paleo Hebrew (circa 200 BCE) and noticed that each of letters were essentially morphed pictographs over time. For instance, the ancient aleph consisted of a vav, with two yods attached to it. The lower yod, attached to the base, pointed upwards to ‘heaven’, and the upper yod, attached to the top of the vav, pointed downwards to earth. So, you told an incredible story of faith, just by the first letter. The vav is a conjunctive, meaning that connection like an “and” would be in English. So the story it represents is one of God connecting with the lower realm, and the lower realm connecting to the God in the heavens. The second letter “bet”, pictures a house with a porch and an overhang facing to the left (or east, the direction of the rising sun), etc. Amazingly, each of the 22 letters represent a visual history of the people, as does all of the semitic aleph bets.
Hebrew grew out of their time in bondage in Egypt, the hieroglyphic system was adapted from or was analogous to hieratic writing in use for everyday communication. Oddly enough, cuneiform wound up getting used to write quite a number of other languages and was the preferred system for diplomatic correspondence by the 9th c BC. The archive at el-Amarna in Egypt consisted of cuneiform tablets, copies of incoming and outgoing diplomatic letters.