Hi Vlada! That is so cool that the meetup presentation is still in the back of your head.
I’m afraid I mostly learned community organizing through doing rather than through reading. I took a program through the Cascade Bicycle Club (Advocacy Leadership Institute), but unfortunately lent my course materials to a woman who never returned them to me, so I can’t share them.
There are quite a few books on Amazon on the topic — perhaps browse a few and see what looks interesting?
P.S. Sorry for delay, I actually left my job at Squarespace last week, and am on vacation before starting a new role on the west coast.