These T-shirts were used in the course Computer Science 227, Introduction to Programming as I taught it in Fall 1992, and Spring and Fall of 1993. The course and many of the T-shirts are based on the book Scheme and the Art of Programming by George Springer and Daniel P. Friedman (McGraw-Hill Book Company, 1989). The material taught in this course is not what we currently teach at Iowa State.
Some of these T-shirts were also used in the course Com S 342.
The images of the T-Shirts (and sweatshirts and dress shirts) are arranged in roughly cronological order. Clicking on one of the links will display a (fairly large) JPEG image of the front or back of the shirt.