This document discusses the importance of sources in journalism and provides guidance on working with different types of sources. It notes that sources provide timely information to reporters and are essential to creating reports. However, reporters must be careful in protecting source identities and maintaining objectivity. The document cautions about types of unreliable sources like liars seeking publicity, hoaxsters spreading misinformation, and promoters pushing agendas. It advises reporters to verify information from multiple sources and be skeptical of leaks and online information. Finally, it outlines different types of sources reporters may use, including other reporters, primary witnesses, documents, and secondary sources like police, while being wary of anonymous tips.