The most basic way to decorate a blank wall: hang some artwork on it. From large canvases to metalwork sculptures, to minimalist prints, the pieces you choose will alter the look and feel of your room. Use the rule of three to hang three similar, large pieces across the wall, or go even further with an entire gallery wall of prints and photos to turn your blank wall into an interior design collage; grouping artwork is a simple way to create a big impact. Continue reading here.