I enjoyed this series of videos on the Secrets of the Hebrew Aleph-Bet
I was trying to learn Aramaic so that I could read the Zohar ( Daniel Matt's Pritzker translation) and realized that I needed to learn Hebrew first. When I saw how much information was hidden in every single letter I realized that it would become a life time of study ....
This is rabbi Trugman's discussion on the letter "Heh" ...