Finally their is the Interior Design Society which is devoted to promoting excellence in the field of interior design. It was founded in 1973 and is made up of interior decorators, home furnishing stores, design studios, manufacturers and distributors. Those are three of the biggest organizations in the interior design industry. There are several other interior design groups and organizations but these are some of the bigger ones.I hope you have found this article useful in your quest to learn more about interior design. For more information contact a design school in your area.