A long report generally covers more complex issues than a short report and includes additional prefatory and supplementary sections. The prefatory sections include a cover page, title page, letter of transmittal, table of contents, and executive summary. The body of the report contains the main text, discussion, findings, conclusions, and recommendations. Supplementary sections at the end include references, appendices, and a glossary. Effective documentation is important, and a report's citations should follow a standard style guide like MLA or APA.