If you want truly, truly heavy and thought-provoking you need to get away from brick-and-mortar bookstore, commercial, non-fiction, and get into work that's produced within and for academia.
For example, I've learned more from Anthony Giddens, Crawford Young, and Peter Berger in a handful of books than almost everything I've learned from pop books combined. The real stuff you want to read is in academia and fairly hidden from public view.
For example, I've learned more from Anthony Giddens, Crawford Young, and Peter Berger in a handful of books than almost everything I've learned from pop books combined. The real stuff you want to read is in academia and fairly hidden from public view.