Interior Design is the activity of improving the space of a room/house by aesthetically choosing elements that enhance the vibe and feel of the area.
This activity is considered to be both an art form, and also a science.
Interior design is considered to be an art form because of the variety of colors, textures, shapes, and placement logistics that go into a finished project.
It is also a science because of the knowledge required to emphasize the best parts of the room/house.
An interior designer is somebody that plans, researches, and coordinates the entire set of procedures required for attaining the finished aesthetic look.