|Google image search can be a bit random....|
The reason this information is priceless, in my opinion, is that they provide context about the time periods in which magical literature was written & published. Without context it's really easy to jump to conclusions and fail to take in to account the social, political, economic, religious environments in which practitioners in previous ages lived & operated.
Understanding context is priceless in my view. The fact that these Universities provide this context information is what makes them priceless. So if you have not signed up and started listening to courses - why not start now? Here is just one of many excellent courses.
Build up a course list of things that interest you and throw in some that you know will rub you the wrong way. Now you're on your way to a continuing education with a healthy dose of academic information to balance the information in non-academic books on magic & mysticism.