On these socks the heel is done by what is called "Short Row Heel". I followed the directions I have after several readings and an internet search for help (YouTube has great videos to help you). Wow, these directions are wicked fussy. There's YO front and back, increases and decreases, and parts missing from the directions. Yikes.
I persevered and was able to get the heel turned. I have to say, though, on the next sock in this pair I will try a technique I found while trying to figure out these instructions. On YouTube it has this tittle :
"Short Row Heel Demo - Lifestyle Toe Up Socks, No wraps!"
It seems much easier and still makes a heel.
Onward and Upward (literally :))