Joel was my teacher at the Museum of Fine Arts School for many years, an excellent teacher who covered EVERYTHING. I've been struggling for many hours yesterday and today with the 3-point perspective for my downtown Merrimac Square painting. After using string about 5 or 6 feet long to get the right angles, I'm finally ready to do some more painting. In a way, I'm anxious to get it done, but I know if I don't get the math right and the values right I'll be sorry. So now, on with the values.