Concrete Books is a course taught by Thomas Ockerse, and he has been teaching it for decades.
To me it is a course so different from other Graphic Design courses, that it focuses more on experience and exploration, and it inspired me with the question "what's the boundry between art and design." I am not sure if I have free myself from the "graphic limitation" as Tom suggested, but I think my opinion toward the question has changed over the semester.