Answer : The use of furniture, architectural features, and color schemes to enhance the space around them. Interior decoration is a broad concept that can take many forms. Although there are no rules for interior decoration, most people consider interior design to be making enhancements in the structure and spatial arrangement of those things inside our space such as furniture, rugs, wall art etc. Interior decorating may include makeovers for walls or paint jobs on them (interior painting), drapery installation (interior window treatments) or getting new carpeting (interior flooring).