bottom of the heel flap is the "Turning the Heel"
portion in green. This is where you make a square, round,
handkerchief, or whatever heel. Since it is such a tiny section,
it is easy to try all the different kinds to see which one
you would like. It may be the most difficult (not really)
part of the sock...but look how TINY it is!
in blue, is easy, especially if you put markers where you are
going to decrease on both sides so you don't forget to decrease
every other row.
around and around/
in orange is another series of decreases...