If you are into typography, or a beginner in Arabic calligraphy, you might find these presentations (watch them here) by Thomas Milo, Tarek Atrissi, and Titus Nemeth from An Evening of Arabic Typography quite interesting.

I personally liked the one about Arabic scripts most.

can not embed this one, unfortunately, but here’s a wonderful video from one of Foundation for Knowledge and Development‘s lectures:

On the Verge of Sin with Moutasem al-Hameedy