Having lived in many loft spaces without any real walls to speak of, my husband and I have tried a few things to divide off our space. We hung wooden walls, made oversized curtains, but it never occurred to me to make a floor to ceiling bookcase to section things off!
This model shows where the bookcases have been implemented in this space which can be seen over at Dezeen. Although you probably won't be able to find bookcases off the shelf that are tall enough for this look, you could easily increase their height by putting them on a pedestal or adding something to the top that enclosed the structure.
By pulling your bookcases away from the wall or rather using them as walls, you'll be making the most of your space as your furniture and belongings won't feel as restricted to the perimeter as they can in more traditional spaces. What do you think about the idea? Claustrophobic and cramped or cool and creative? Let us know below!