Presenting Data: Charts, Tables and Exhibits

A report’s data presentation either communicates in seconds or invites doubt. The same numbers can inform or mislead depending on how they are charted, titled and framed. Good exhibits are not decoration; they are the evidence the report rests on, and how they are built is part of the report’s credibility.

This guide covers how to present data in a report: choosing the right chart, titling exhibits with a message, comparing against a baseline, and avoiding the presentation choices that quietly mislead. It is the companion to How to Structure a Business Report.

An exhibit is not a picture of data. It is a sentence about the data, drawn.

The exhibit’s job

An exhibit has one job: to make a point faster and more clearly than prose can. That means every exhibit should carry a message, not just a dataset.

• The title states the takeaway, not the topic – “Revenue grew 12% in Q3,” not “Q3 revenue.”
• The chart matches the point – trend, comparison, composition or distribution.
• The comparison is visible – against a prior period, target or benchmark.
• The source and as-of date are stated.

An exhibit that shows data without a message leaves the reader to do the analyst’s work, which defeats the purpose.

Choosing the right chart

The chart follows the point, not the data.

Choosing the wrong form is one of the most common presentation errors – a pie chart for a trend, or a line chart for unrelated categories. Match the form to the question the reader is asking.

Tables versus charts

Tables and charts do different jobs, and reports need both.

• Use a chart when the point is a shape, a trend or a comparison.
• Use a table when the reader needs precise values, or many items.
• Use both where the shape matters and the exact numbers do too – chart first, table beneath.
• Never make the reader read a table to find a trend a chart could show in a glance.

The most common failure is presenting a table where a chart would communicate instantly, and a chart where the reader needs the exact figures.

Comparison and baselines

A number alone rarely persuades. A number in context does.

• Show against a prior period – the same quarter last year, the prior month.
• Show against a target or plan – is this ahead of or behind where it should be?
• Show against a benchmark – how does it compare to a peer or an industry figure?
• State the baseline explicitly, so the reader knows what the comparison is.

An isolated number invites the question “compared to what?” A compared number answers it before it is asked.

Honest presentation

Presentation can mislead without lying, and the discipline is to avoid it.

• Keep axes consistent across exhibits that will be compared.
• Do not truncate the y-axis to exaggerate a change, unless clearly marked.
• Show the full time period, not a window chosen to flatter.
• Label units and currency on the exhibit, not only in the text.
• Avoid 3D charts and unnecessary decoration that distort or distract.
• Cite the source and date so the reader can verify.

Credibility in reporting is built on exhibits a sceptical reader cannot fault.

Exhibit conventions for recurring reports

In recurring reports, consistency across cycles is as valuable as the design of any single exhibit.

• Number exhibits and reference them from the text.
• Keep the same chart for the same metric each cycle, so the reader compares like with like.
• Keep the layout stable, so a reader re-orients in seconds.
• Standardize titles and sources, so every exhibit reads the same way.

A recurring report whose exhibits change shape every month forces the reader to re-learn the page. Stability is a feature.

A worked exhibit critique

Take a chart titled “Q3 Revenue” showing a bar that is taller than last quarter’s.

• Problem: the title states the topic, not the point. The reader has to infer the takeaway.
• Fix: title it “Q3 revenue grew 9% against plan,” so the point is explicit.
• Problem: the y-axis starts at $3.9M, exaggerating a 9% change into a dramatic jump.
• Fix: start the axis at zero, or mark the truncation clearly.
• Problem: no source or as-of date.
• Fix: add “Source: finance system, as of day 3.”

Three small edits turn a chart that invites doubt into one that carries its point.

Chart conventions that travel

Standardize the conventions that make exhibits consistent across a report and across cycles.

• Titles state the takeaway.
• Axes start at zero unless clearly marked otherwise.
• Units and currency appear on the exhibit.
• Series are labelled directly rather than by a remote legend.
• Sources and as-of dates are stated.
• Colors are used sparingly, with patterns or labels as backup.

Consistent conventions let a reader read every exhibit the same way, in this report and the next.

Tables that work

A good table is engineered for the reader, not the analyst.

• Order rows by importance, not alphabetically, unless the reader expects a fixed order.
• Put the current period first, with comparisons to its right.
• Align numbers on the decimal, so magnitude is visible at a glance.
• Shade alternate rows lightly, so the eye tracks across.
• Total rows at the bottom, bolded, so the sum is easy to find.
• Keep units in the header, not repeated in every cell.

A table that is easy to scan communicates even when the reader is not reading closely.

Common mistakes

• Topic titles instead of takeaway titles. The reader has to interpret the point.
• Wrong chart for the point. A trend shown as a pie, a comparison shown as a line.
• No baseline. An isolated number that invites “compared to what?”
• Truncated axes. A change made to look dramatic that is not.
• Missing sources. An exhibit a reader cannot verify.
• Changing exhibit shapes each cycle. The reader re-learns the report every time.

Frequently asked questions

How should charts be titled in a report?

With the takeaway, not the topic – “Revenue grew 12% in Q3,” not “Q3 revenue.” The title should state the point the exhibit is making.

When should you use a table instead of a chart?

When the reader needs precise values or many items. Use a chart for shape and comparison, a table for exact figures, and both where each adds something.

Should every exhibit show a comparison?

Wherever a comparison exists, yes – against a prior period, target or benchmark. A number without a baseline is an invitation to ask “compared to what?”

Is it acceptable to truncate a chart’s axis?

Only if it is clearly marked and necessary, and rarely. Truncating an axis to exaggerate a change undermines the report’s credibility.

Why should exhibits stay consistent in recurring reports?

Because a reader who has to re-learn the layout each cycle reads less carefully. Consistent exhibit shapes let the reader compare cycles in seconds.

Where should exhibits go in the report?

Key exhibits belong in the body, next to the text that interprets them. Detailed or supporting exhibits belong in the appendix, referenced from the body.

Should every chart start at zero?

For bar charts, yes, because bar length encodes magnitude. For line charts, a non-zero baseline can be legitimate if it is clearly marked, but it should be rare.

How many charts should a report have?

As many as carry points, and no more. A chart that repeats a point already made in the text adds length, not clarity.

How do you decide between a table and a chart?

Use a chart when the point is shape, trend or comparison; a table when the reader needs precise values or many items. Where both matter, show the chart first and the table beneath.

Should tables be sorted?

Sort by importance or by the metric’s natural order, not alphabetically, unless the reader expects a fixed sequence. The order should serve the point.

What is the most common exhibit mistake?

Titling an exhibit with the topic instead of the takeaway, which leaves the reader to work out the point. The title should state what the exhibit shows.

How do you keep exhibits consistent across a recurring report?

Standardize the conventions once – takeaway titles, zero-based axes, direct labels, stated sources – and reuse the same exhibit for the same metric each cycle.

How do you label a series without a legend?

Place the label at the end of the line or on the bar itself, so the reader connects the value to the series without scanning back to a legend. A direct label is faster to read, works in grayscale, and needs no interpretation from the reader at all. It matters most in recurring reports, where the same exhibit returns each cycle.

Next step

Treat every exhibit as a sentence about the data. State the takeaway in the title, show a comparison, keep the axes honest, and cite the source. See The Anatomy of a Business Report for where exhibits sit and Report Style Guide & Terminology for the conventions that keep them consistent.

Sources

• APMP, Body of Knowledge: graphics, action captions and page and document design, applied to report exhibits.
• Data-visualization practice (chart choice, baseline comparison and axis integrity): standard reporting conventions.

Good-practice claims are cited from their sources; no statistic in this article is invented.