This document provides an overview and introduction to using Tumblr for libraries. It discusses what Tumblr is, how it works, and how libraries can use it professionally. The agenda includes explaining Tumblr's functionality, finding library pages on Tumblr, interacting and engaging audiences on Tumblr, and tips for using it. Specific examples are provided of libraries, authors, and book blogs currently using Tumblr successfully. The homework assignment is to set up a basic Tumblr blog and make an original post with tags and reblog another post.