Even the smallest amount of light can define a space or nook. I’ve always been envious of elegant libraries and galleries that spotlight framed art and photos with picture lights. The simple act of viewing is elevated to an event.
Battery-operated picture lights are lightweight and affordable and radiate the right amount of glow to a dark corner or to illuminate a humble piece of art. I bought these from improvementscatalog.com.
These lights clip onto any cabinet door or picture frame without leaving a mark. Move them around and use them over a mirror when you get bored.