Whether for portrait or figure/life drawing classes, a model is needed as a subject to be drawn, painted, or otherwise rendered by an artist. It is more involved than just “sitting there and looking good” – there is a physical challenge to modeling. Portrait models need to be able to hold a pose for an entire sitting and be able to resume the same pose after a break. Figure models need to hold poses and are usually required to give a variety of poses through a session. The exact length of the sessions, number of poses in a session, and frequency of breaks will depend on the class format.