2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/68328This is a chapter that is to appear in the "Handbook of Knot Theory", edited by William W. Menasco and Morwen B. Thistlethwaite.33pp. 12 fig. A mildly updated version for final pubicationGeometric Topology57M25Thin position in the theory of classical knotstext