What is the most logical next event?

How to turn a nook into a home library
Remove all furniture, movable shelves and books from your nook.
Give the area a deep cleaning with soap and water. This can serve as preparation before you paint or as a way to protect your books from dust, sunlight or insect damage.
Decide on a color scheme for your nook and paint the walls or shelves. If the rest of your house has white walls, you may choose to leave the area white.