Set theory (Math 320)
(I did not teach in 2003, but I wrote some notes that were used in the course.)
The text that I prepared for (and in fact during) my last teaching of this course is called Minimalist Set Theory (May 17, 2011, edition, 166 pages, size a5):
I continued to work on this book after the course, the result being the following (June 27, 2011, edition, 178 pages, size a5); but my work on this was not finished (as is shown by the retention of marginal labels):