American Society of Interior Designers
The American Society of Interior Designers (ASID) is the oldest and largest professional organization for interior designers with the largest residential and commercial membership. With more than 30,000 members, ASID establishes a common identity for professionals and businesses in the field of interior design. Through education, knowledge sharing, advocacy, community building and outreach, the Society strives to advance the interior design profession and, in the process, to demonstrate and celebrate the power of design to positively change people's lives. The association boasts 48 chapters throughout the United States and Canada. ASID was founded in 1975 with the consolidation of the American Institute of Designers (AID) and the National Society of Interior Designers (NSID).
I have been using Pelikan opaque watercolors for 40 years. I love them. They last a long time. The colors are great. Also, with more pigment, you can achieve rich vibrant colors that don't fade. I don't put my finished pieces in the sun. And they don`t dry up like tube watercolors. I have given them as presents also.