Twined knitting
From the rear cover of this 120 page book: "Twined knitting is a venerable Swedish folk knitting technique which creates an unusually dense, durable, and exquisitely patterned fabric. Twined knitting has been used historically for mittens, caps, gloves, stockings, and jackets. Knitters today are finding that the extra skill and care demanded by this fascinating technique are justified in its heirloom-quality results. Working with an extensive collection of old knitwear at the Dalarnas Museum in Sweden, Brigitta Dandanell and Ulla Danielsson have unraveled the secrets of twined knitting, and present them in this volume along with instructions for a number of handsome projects."