Jiseung is the process of cording and twining hanji (Korean paper) by a master weaver, Na Seo Hwan. He is a 3rd-generation master who learned from his father, who learned from his grandfather. He has also developed a more effective and efficient way of cording paper, which is different from the way most jiseung artists work. This ancient paper craft, known formally as noyeokgae, still exists in Korea today but the intense labor, time, and strength required for it means that very few masters remain, and even fewer serious disciples.