The document provides an overview of a course on disaster volunteering. It covers 5 lessons: 1) an introduction, 2) when disasters strike, 3) the disaster response community, 4) disaster response organizations, and 5) a call to action. The lessons describe common disasters and their impacts, how the community responds collaboratively, key response organizations like the Red Cross, and steps to become a volunteer. The goal is to educate about disaster relief efforts and engage more volunteers.