I always have a book or author in mind when I go to a book store. I have walked past the displays anon mentions, but they are ‘whats new’ advertising so they are flashy and change often.
My complaint is that the types of books I like are given less and less shelf space every year. Romance and children’s books have mostly replaced science fiction and fantasy. I guess the stores know what sells and stock it.
What about gravity? I know I read something about this once, but is gravity also limited to the speed of light?