Kaz Cooke (born Karen Cooke; 17 December 1962) is an Australian author, cartoonist and broadcaster. She has written several bestselling advice books for girls and women, including Real Gorgeous, Up the Duff (also published under different titles outside of Australia), Kidwrangling. Girl Stuff and Women's Stuff, as well as a series of ebooks on women's health topics. Cooke has been a columnist for various Australian newspapers and magazines, including Dolly, The Age, The Australian, Who and The Canberra Times. A collection of her columns, Living with Crazy Buttocks, won the 2002 Bookseller/Diagram Prize for Oddest Title of the Year. In 2008, Girl Stuff won the Australian Publishers Association's General Non-fiction Book of the Year,[1] the Australian Booksellers Association Nielsen BookData Booksellers' Choice Award,[2] and an honour prize from the Children’s Book Council of Australia.[3]