Interior design is the art and science of enhancing the interior of a space to achieve a healthier and more aesthetically pleasing environment. It involves the careful selection of colors, furniture, and decorations to create a cohesive look that reflects the personality and needs of the inhabitants. Designers consider factors like lighting, space planning, and furniture arrangement to maximize functionality and comfort. They also pay attention to the use of materials and textures, ensuring that every element works together harmoniously. Ultimately, good interior design transforms a house into a home, making it a welcoming and enjoyable place to live.