Multi-Author Summaries

A multi-author document has five contributors and one executive summary. The summary reads in one voice. This is the goal. In practice, multi-author executive summaries often read as a diplomatic compromise between five different writing styles and five different priorities — each contributor's section gets equal billing, the strongest argument gets diluted because someone else's section needed to be represented, and the result is a summary that is fair to the team and useless to the reader.

Synthesis is not aggregation. Synthesizing five contributors'arguments into one coherent executive summary is a distinct skill from writing any of the contributing sections.

1. Designate One Writer The executive summary should be written by one person. That person reads all contributions, understands the full argument, and writes a summary that represents the conclusion of the work — not the conclusion of each section in sequence. This person is not a co-author of the summary. They are the editor who produces a document from source material. The contributors review for accuracy, not for equal representation.
2. Establish the Thesis Before Writing Before any contributor writes a word of their section, the team should agree on the thesis — the single overarching claim the document supports. The thesis is the organizing principle of the executive summary. Every section of the body provides evidence for the thesis. The summary presents the thesis and the primary evidence. If the team cannot agree on a thesis before writing, the body will contain conflicting arguments and the summary will be a committee product: internally consistent with nobody and externally useful to no one.
3. Review for One Voice, Not Consensus The review process for multi-author executive summaries has one question: does this summary accurately represent the argument? It does not have the question: is my section adequately represented? A contributor whose section's finding appears in one sentence of the summary should accept that sentence if it accurately represents the finding. The summary's loyalty is to the argument, not to the contributors. This is a political challenge in most organizations. It is also the difference between a summary that works and one that does not.