This is a perfect combo of my two favorite ideas for that space under the stairs leading to the basement. A reading nook AND book storage and shelves . assuming that there is enough space for this there.
Mosaic floor and whites painted stairs. Oh my goodness I just love this. Unfortunately the stairs would be too noisy in my house and the cellar is under the sitting hall and needs to breathe so we shouldn't tile it. But I just LOVE this!