Rolling Ladder: For reaching top shelves and adding a classic "Old World" feel.

Built-in Lighting: LED strips or brass "picture lights" to highlight book spines.

Adjustable Shelves: Movable pins to fit everything from tiny novels to tall art books.

Closed Base Cabinets: Bottom drawers to hide messy items or board games.

Reading Nook: A built-in window seat or bench integrated into the shelving.

Pop-out Trays: Small slide-out shelves to hold a drink or a book while browsing.

Decorative Backing: Using wallpaper or a dark paint color behind the books for depth.