This week's featured bookshelf could actually be more realistic for our future home someday. This is from Real Simple and is actually what used to be a bedroom closet. I could see this working in a bedroom that's being used as an office or workspace. Take off the doors and put in some sturdy shelves... and ba-da-bing, you've got yourself a library!
There are more details in the Real Simple article on how they transformed this closet into a library if you are interested.
image courtesy of Nikolas Koenig via Real Simple