Spherical Perspective: Here's Looking at It!

"Spherical Perspective - a brief tutorial"

This is a pretty good introduction to the idea of spherical perspective: drawing things (almost) the way we actually see them.

I was impressed with the relatively clear discussion and well-chosen (or drawn) illustrations.

One or two illustrations seem uncannily similar to ones I saw in a book on perspective: one I read several decades ago. Can't remember the title, of course. I suppose, when illustrating the same concepts, illustrations will be similar.