I am a big fan of giving books to kids as gifts. They always enjoy looking at the colorful pictures and it’s a perfect opportunity for parent / child bonding when the kids ask to be told a story. But when the books are out of place it is just something else to mess up the room and to create clutter in the house.
To create the kid’s library, I suggest the use of book shelves or storages at a low-level so that they are free to take a book anytime. It should be made of light material (so you don’t have to worry about it falling over anyone) and should also display the book covers.