Start by measuring your sunroom and identifying light sources. Plan a 60/40 split allocating the brightest area for the art studio and the cozier side for a home library. Install UV protective window treatments and choose high-CRI 5000K task lighting for the studio. Select flexible furniture like slim desks and comfy armchairs, then use washable rugs to define zones. Add closed storage for supplies and books to reduce clutter and finalize a functional, inviting layout.