Answer : Interior decoration is the art and science of enhancing the interior of a building to achieve a healthier and more aesthetically pleasing environment for the people using the space. An interior decorator is someone who plans, researches, coordinates, and manages such projects. Interior design is a multifaceted profession that includes conceptual development, space planning, site inspections, zoning regulations, acoustical considerations, lighting design, construction management,execute their designs in order to create an aesthetically functional and healthy environment."