In early 1990, Bruce Itule and I published: “Visual Editing. A graphic guide for journlists”.  This textbook was aimed at editors at newspapers who handled various elements — photos, illustrations and informational graphics. It also tied all those elements together with chapters on newspaper design. It also include some history and a section on ethics.  It was a great learning opportunity and I believe it helped become a better editor and manager. The Visual Editing textbook is on this site. More on the book is here.