DIY "Floating Bookshelf" Add two tiny nails just under the brackets. Open the bottom book, and used the nail to hold the cover closed. This hides the bracket completely, making the bookshelf invisible.
old doors made into corner shelves.buy old door at architectual salvage and get pieces of hardboard for the shelves. Cut door in half to make each side of the corner shelf. Could also use old barnwood for shelves