Dust the top of the shelf thoroughly. This allows the finish of the bookshelf to shine through, which offers a complement to your decorations.
Decide what you wish to display. You can arrange a small group of collectible items, flowers in a vase or family pictures. If you are decorating a tall shelf, place fragile items that may be damaged by children or pets on these high shelves.
Add plants to the shelf, either as the sole decoration or as a border to your collectibles or photographs.
Decorate the top of a child's bookshelf with special items from her life that are too delicate or special for her to play with. For example, a china plate with her name and birthdate or her first pair of shoes.
Light the top of the bookcase with small spotlights or wall scones to highlight your decor.