Yes, I will use it in my future work, really. It is also possible to keep the basic teaching materials of professional courses, even if it is not necessary to keep them all, such as the number of words. The experience of people who have been there.
What you are talking about is the "books" of universities, which should include three categories: public books, professional books and hobby books. You don't need to leave public textbooks; Professional books are divided into three categories: classic works, teaching materials and teaching AIDS, leaving only the former; Keep hobby books according to your current concern, and throw them away if you want.