Back to Theory - Found a great set of videos

https://www.youtube.com/playlist?list=PLbgaMIhjbmEnaH_LTkxLI7FMa2HsnawM_

I have only watched the first two so far, but the instructor seems to have a good way of describing category theory for programmers.  Just watching the 2 videos has clarified a lot of information that I have processed from other sources.