It's an interesting topic, although a lot of previous knowledge is required, especially in chemistry (came here because of cosmology, and had a rough time). There are three main units dealing with UV and visible-light spectroscopy, infrared spectroscopy and nuclear magnetic resonance spectroscopy, while the four week is comprised of the final exam. Practice quizzes are difficult, and the exam as well, and I believe the course would be better if it was split into more weeks. Slides are available for download, which is useful, but some extra resources and recommendations would be great, although spectroscopy videos are nice. A background in chemistry is needed in order to appreciate the course completely, so I don't feel competent enough to grade it.