The document provides guidance on how to write an effective report. It recommends that reports be highly structured, with numbered headings and subheadings, short paragraphs, and graphics. It advises to write in a concise and scannable manner. The document also outlines the typical sections of a report, which include a title, contents, abstract/summary, introduction, main sections, conclusions, recommendations, references, and appendices. It stresses collecting and organizing information before writing the first draft of the report.