Okay, let’s tackle this. So Greg Hickman has 16 years of experience in design, which is a solid amount of time to build expertise. He's worked as a project manager at Microsoft, which is a large and reputable company. His experience in book design and vendor management also suggests he has a strong understanding of the creative and logistical aspects of design. However, his skills are quite niche, and the design industry is highly competitive. Considering his experience and skills, I would estimate his hourly rate to be around $75, which is on the lower end of the scale. This is likely due to the fact that his skills are not as in-demand as those of more general designers, and he may not have the same level of experience in the most sought-after design areas.