On my bookshelf that holds more than books:
The bottom shelf: unused board games, chess, jewelry making supplies, and old binders that I plan on keeping as a little time capsule to remember my school days.
The second shelf: a microscope, headbands, a painting kit, air dry clay, Markart colored pencils (48), and books.
The third shelf: nail polish, hand sanitizer, a Rubik's cube, more books, and earrings that were given as a gift that I cannot wear since I don't have my ears pierced. ;-;
The fourth shelf: perfumes, moisturizers, and more books.
The last shelf: facial cleansers, air freshener, and a random pour painting (poured paint on the canvas and got a random result) little me made in 2021.
The top part of the shelf: Disney Infinity statues (they would go on the console and the bottom would be scanned so you could play as them), old DVDs, a wooden butterfly that was painted, a random baseball cap, and an extra black light bulb.
Out of all of this, mainly books. ^^