Last semester I got my first opportunity to teach a new gen ed course that I'd created, titled Relativity for Poets. (The word "poets" in the title is a joke, which it turns out a lot of people don't get. There was no actual poetry in the course!) It was a ton of fun, because I got a group of students who were highly self-selected -- it takes an unusual history major to say, "Hey, it sounds like fun to learn about Einstein's theory of relativity!" The required texts were Takeuchi, An Illustrated Guide to Relativity, Stannard, Relativity: A Very Short Introduction, and Ostriker and Mitton, Heart of Darkness. In addition, I wrote up my own set of lecture notes, which I've now finished putting into the form of the first draft of a book. The book is a free download.