Okay, let’s tackle this. So Barbara has 49 years of experience as an interior designer and art director. That’s a long time, and it’s likely she’s developed a strong skill set. Her education in Art History, Criticism and Conservation from the University of Michigan adds to her credibility. Skills like graphic design, photography, and fine art are in demand, especially in the interior design field. Location is Los Angeles County, California, which is a hub for creative professionals. Considering her experience, education, and skills, I’d estimate her hourly rate to be around $150, which is on the lower end for someone with her level of experience. However, this is a rough estimate, and actual rates may vary based on specific circumstances.