Researching social dynamics, opinion dynamics, and agent-based modeling in my time at RWTH Aachen University, I wrote a lot of introductory material on those topic, which we turned into online learning resources. I built an educational R library (gridabm) to build and animate grid agent-based models in a few lines of code and wrote lots of explanations on cellular automata, agent-based modeling, emergent phenomena in complex social systems, and other related topics. The site is open source and contribution is encouraged (see the publication). All code for this project is available on GitHub.