Hello, I am interested in the free downloads that are publicly available on the main websites of elite universities. By "free downloads" I mean textbooks that are publicly available on the websites of the universities (in pdf or docx). That also includes public research documents from those websites (in pdf or docx). Everything I am searching for are the ones that are public. Also if possible, please tell me if I can get the public documents in bulk downloads. The reason I'm doing this is for my personal research and I want to learn from those courses while I'm offline. Please don't say "there are better ways to get information" because this is the method I want to get information (from the most prestigious institutions).