Interior designers work with interior spaces to make them visually and physically pleasing. While decorating the space is a prime responsibility, interior designers might also focus on architectural aspects of the space, such as crown molding. Interior designers can be found designing for a variety of settings, such as schools, homes, restaurants, airports or office buildings. They are skilled in both architectural and decorating aspects of interior space. When interior designers begin working with a space, they consider the purpose of the rooms. They make design plans or draw up blueprints that include structural features, such as built-in bookcases. Interior designers also consider characteristics of a space, including colors, lighting and furniture.