Mommo Design has a bunch of inspiration for girly reading nooks. These quiet corners contain fluffy pillows, rugs, cushions, usually a canopy, and of course lots of books. I think the idea is very cute and I'd love to do this for my daughter's room.
Playroom, table source: Freckles Chick website Chic playroom featuring Ikea Expedit Shelving Unit filled with The Container Store Rugby Stripe Bins, toys and books. Ikea Latt Children's Table and Chairs with Target pillows doubling as cushions.