As you are emptying your shelves be honest with yourself. What do you really need to keep? Can you make a donation or yard sale box of books that you will truly never look at again?
The older corner type shelves used to have a decorative wood or metal bracket that would be visible. Although it was easily seen, it was made to blend into the decor of the room. With the modern corner shelves, they can be hung with out any of the brackets being seen. You can still get a large number with decorative wall brackets, but a floating type design has become so much more popular.
Organize your books into several stacks. Sort by size.
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