“CST 101” is a 7-part video series presented by the USCCB and Catholic Relief Services on Catholic Social Teaching.See the series
From their poster about the series:
The Church’s social teaching is a rich treasure of wisdom about building a just society and living lives of holiness amidst the challenges of modern society. Modern Catholic social teaching has been articulated through a tradition of papal, conciliar, and episcopal documents. The depth and richness of this tradition can be understood best through a direct reading of these documents. In these brief reflections, we highlight several of the key themes that are at the heart of our Catholic social tradition.