This Google Slides file has 39 slides of background information and examples (from the Wikimedia Commons) of visual symbols, iconography, memento mori, and vanitas. It is an excellent introduction to the concepts. Additionally, I have included several slides with discussion questions throughout the slideshow in order to increase engagement with whole group discussions, as well as a slide at the end that invites students to choose from three questions to respond to. (The choice seems to improve