Origins -- Traditional yarns -- Equipment -- Knitting methods -- Techniques -- Tools for planning sweaters -- An evolution of shapes -- Style alternatives -- Color stranding: Norway ; Sweden ; Great Britain ; Iceland ; Fµroe Islands ; Samiland ; Cowichan sweaters of Canada ; American folk art designs -- Intarsia -- Texture: Denmark ; Great Britain ; The Netherlands ; Ireland ; Norway ; Austria and Germany -- Geometric patterning -- Crochet-enhanced knits.