The Structure of Freemasonry is a great picture of how Masonry works, however, it is very misleading to the non-mason.
To truly understand the Masonic structure, you first have to understand that there is no Degree in Masonry higher than the
3rd. If you were to lay this picture down, and make it three steps high, you would get a better picture of the Masonic structure.
Start in the Blue Lodge, go up three steps, then you can move around to the other rites and groups. It's 3-Dimensional.