Please choose the correct solution to the question: How to make a fun vertical bookshelf?

Solution1: Run a thick band thread across a bundle of books and staple the thread to a wooden plank, place brackets into the wall and place the plank underneath the brackets for an inverted bookshelf

Solution2: Run a thick band thread across a bundle of books and staple the books to a wooden plank, place brackets into the wall and place the plank atop the brackets for an inverted bookshelf

Answer format: solution1/solution2