Books outgrow every shelf they're given. The thirty ideas below cover the two halves of the problem: storing them somewhere pleasant to look at, and organising them so you can actually find the one you want.

Building more shelf

1. IKEA Billy hack — add trim, paint, crown moulding; looks built-in at 1/10 the cost.
2. Floor-to-ceiling floating shelves with steel brackets.
3. Alcove bookshelves around a fireplace or doorway.
4. Under-stairs library — the most wasted space in most homes.
5. Window-seat bookcases flanking a window.
6. Invisible wall shelves with the mounting hardware hidden inside the bottom book.
7. Pipe-and-board shelves — industrial, cheap, fast.
8. Repurposed ladder leaned against a wall.
9. Stacked wooden crates bolted together.
10. Over-the-door shelves in a kid's room for a small reading library.

Organising systems

11. By colour — beautiful, terrible for finding a specific title. Do this only for display shelves.
12. By genre or subject — the most practical system for a mid-size library.
13. By author alphabetical within genre — library-grade findability.
14. By height — clean visual rhythm; sacrifices findability.
15. Chronological by publication — unusual but useful for specific collections (classics, histories).
16. Read / unread separation — shames you in a productive direction.
17. "To read this year" shelf — 20–30 titles, deliberately small, in sight daily.

Storage tricks

18. Mix horizontal and vertical stacks — the eye relaxes at visual rhythm changes.
19. Bookends that double as art — brass animals, old cameras, small sculptures.
20. Double-stack paperbacks on deep shelves — second row raised on a 2-inch riser.
21. Seasonal rotation bins — cookbooks out for autumn, travel books out for January.
22. Donate ruthlessly — if you haven't opened it in 5 years and won't lend it, free the shelf.

Creative spots

23. Staircase-landing bookcase.
24. Bathroom bookshelf (yes, really — humidity's fine if ventilated).
25. Behind the couch console with low shelves.
26. Corner unit in a bedroom.
27. Hanging a pair of rain gutters painted white — kids' book bins.
28. Converting a closet into a mini-library.
29. Under the bed — shallow storage bins for overflow paperbacks.
30. Built-in headboard with book cubbies.

The best bookcase is the one you walk past daily. Placement in your path matters more than how pretty it looks — a library behind a closed door is a storage unit; a library in the living room becomes a habit.