In book publishing in the United Kingdom and other parts of the world that follow UK nomenclature, the term 'copy editor' is also used, but in newspaper and magazine publishing, the term is 'sub-editor' and commonly shortened to 'sub' or 'subbie'. As the 'sub' suggests, UK copy editors usually have less authority than regular editors. 'Editors' in book publishing generally have a responsibility for choosing authors and titles which will make for good sales. In magazines and newspapers they are executives, responsible for the business success of the enterprise.