Based on this review, some key points to consider when thinking about what to put on shelves for decoration include:

1. Variety: Consider adding small objects that bring personal meaning or interest such as keepsakes, toys, and everyday items.

2. Space efficiency: Be mindful of the size and shape of your books and other decorative items so they fit comfortably without overcrowding the space.

3. Quality control: Inspect each item thoroughly before purchase to ensure it is sturdy and well-made.

4. Assembly instructions: Follow all included directions carefully, especially if you're assembling furniture like bookcases yourself.

5. Customer support: Research a company's customer service reputation in case you encounter any issues with your purchases.

6. Product consistency: Be aware that items may have been manufactured at different times or places, which can lead to variations and potential compatibility problems.

In summary, when deciding what to put on shelves for decoration, consider carefully chosen objects that add visual interest while also ensuring the stability of your shelving system.

Black and white books on shelf