I came across his stuffs a year or two back while trying to understand some other math topics (various google searches all led me there). He's currently running an open seminar on category theory here: https://forum.azimuthproject.org
Thanks for the share. I've been meaning to study category theory for a while now. This course and the suggested literature looks really helpful.
Please join the forum. We're nearly done with chapter 1, but chapter 2 won't start until next month and the discussions will still be available for you to participate in.
Is also worth a watch. Though I found that I've had to restart it a couple times over the years. Category theory, like many more abstract topics, is really hard to get a handle on. I've restarted those YouTube videos and have found them much easier this time around since enough of the basic category theory concepts are now in my head (though not fully understood with regard to purpose, implication, or application).
We've got Dr. Baez, Dr. Spivak, and several others who are much more familiar with the field and its applications participating in the forum now.
The lectures present the same material as the text book but in a slightly different order and with additional examples (what you'd expect from a lecture series). Technically, reading the lectures is sufficient for understanding the chapter at least at a high level. Reading both is fantastic because they complement each other (Dr. Baez assumes some of their theorems and propositions, but introduces others).
Just signed up. The community looks wonderful and I'm really looking forward to participate and learn. Thanks again for the share.
Really glad to have stumbled upon this. The author's homepage at http://math.ucr.edu/home/baez/ appears to be a treasure trove of interesting mathematical tidbits.