This is a neat reading nook. I like the idea of curtains in place of doors, especially since this is a kids' room. Keep an eye out on them, but they feel like they still have privacy. This is a great idea for a playroom, too.
Da Vinci's full quote: “Principles for the Development of a Complete Mind: Study the science of art. Study the art of science. Develop your senses- especially learn how to see. Realize that everything connects to everything else.