A great way to impress a potential interior design employer is to show them that you're capable of doing the work. By putting the right mix of projects in your design portfolio, you can do just that. Make sure you show a combination of conceptual design as well as your completed projects in your design portfolio. Show off your interior design skills by putting in a range of floor plans, lighting plans, renderings, and computer generated work. A well thought out portfolio showcasing your very best interior design skills will help get you hired for that next interior design job.