Yup'ik masks (Yup'ik kegginaquq sg kegginaquk dual kegginaqut pl and nepcetaq sg nepcetat pl; in the Lower Yukon dialects avangcaq sg avangcak dual avangcat pl ; in Nunivak Cup'ig dialect agayu) are expressive shamanic ritual masks made by the Yup'ik people of southwestern Alaska. Also known as Cup'ik masks for the Chevak Cup'ik dialect speaking Eskimos of Chevak and Cup'ig masks for the Nunivak Cup'ig dialect speaking Eskimos of Nunivak Island. One of their most popular forms of the Alaska Native art are masks. The Yup'ik masks vary enormously but are characterised by great invention. They are typically made of wood, and painted with few colors. The Yup'ik masks were carved by men or women, but mainly were carved by the men. The shamans (angalkuq) were the ones that told the carvers how t