These 3 videos take you through the heel turn and base of heel in NEW PATHWAYS FOR SOCK KNITTERS, BOOK ONE, stating on page 13 and ending on page 16. The demo is primarily on 2 circular needles, with sections shown on DPN's as needed.
by NotikaLand crochet and knitting
by Girlio
by Natasha Blythe
by Woolpedia English
by Paper Guru
by nickandsal001
by Crochet Mama