This document provides principles for good report writing. It discusses formatting a report, including having a table of contents, executive summary, clear and concise writing, interpreting data for readers, and using graphs. Key recommendations are to think about the audience, make information accessible, use clear and succinct writing, interpret findings rather than just reporting data, and provide succinct recommendations supported by rationale. The document also covers principles of good referencing, including being consistent, following a standard style guide, and ensuring in-text citations match full references in the bibliography.