When I read books, very often my "imagined" characters don't have faces. I don't know why, but that's how my imagination works - I picture the personalities rather than the physical appearance. Saying that, my characters have clothes, and height, and hair, and other physical aspects, but I just can't make the "proper face image", even if it's described in the book
. Especially in Tolkien's books, where faces (and particularly eyes) reflect the character's inner self.