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 HipCreative
by Dana B
by Fiber Spider
by MarianoZavalaOrigami
by LAMBDA CRAFT
by Ayani Art