Martha Stewart (born Martha Helen Kostyra; August 3, 1941) is an American business magnate, author, eitor and homemaking advocate. She is also a former stockbroker and fashion model. Over the last two decades Stewart has held a prominent position in the American publishing industry; as the author of several books, hundreds of articles on the domestic arts, editor of a national homekeeping magazine, host for two popular daytime television programs, and commercial spokeswoman for K-Mart. In 2001 she was named the third most powerful woman in America by Ladies Home Journal. In 2004 she was convicted of lying to investigators about a stock sale and served five months in prison.