A home library seems like a luxury, but really - it's an achievable dream if you just put a little creativity into it!
Whether for the adults in the house, or a child's reading nook, a reading space can bring beauty and a warm comforting tone to a home.
For creating a "diy" nook, there are lots of kid's book display ideas to choose from. Just make sure that you keep the look high quality to bring value to the overall tone of the home, instead of just throwing together a few items to read in a corner.
With a little elbow grease, you can really create a magical space.
For a child's library, consider seating options (like big cushions, or padded benches). You can even put up a canopy over the bed to create a reading atmosphere. Also make a good decision about how to display the books. You can use a bookshelf, bookcase, floating shelves, magazine racks, and all other kinds of shelving to display.
The goal for a child's area is to create a wonder of books and an inviting space to encourage a love of reading and love of books.
For an adult library, built-in bookshelves will probably look best. If you go with free-standing bookshelves, do what you can to make them blend into the room as a whole. Keep in mind the decor of the entire household and make it flow nicely with the rest of the home.
If you have high shelves, you can even install one of those moving ladders on wheels and a track to reach the high spaces. They look great, and are functional as well.
I wouldn't consider the addition of a home library (in the diy sense) to be a great selling point if your house will be going on the market anytime soon. Unless you have an entire dedicated room with a professional-looking home library with built-ins in a large home, a diy kid's reading nook may be too personalized when you are trying to sell.
For your own pleasure though, and depending on your budget and decor skills, a home library or reading nook is a wonderful addition to a home.