OmniDocWhat is the role of charts in PPT and when should charts be used?
Explain clearly the role of charts in PowerPoint slides, and when to use charts and when to use text or tables. It provides judgment criteria, common misunderstandings and self-examination steps before production to help you decide what kind of content to put on a page.
Key points of this article
- The function of a chart is to draw the size, change and proportion between quantities into a shape that readers can see at a glance, but it cannot replace the analysis itself.
- When comparing trends, sizes and proportions, charts are preferred; when precise values need to be checked or reasons explained, tables or text are more appropriate.
- Only one conclusion should be stated on one page. The title of the chart should directly state this conclusion, rather than just writing keywords such as "sales data".
- Charts should remove three-dimensional and decorative effects and retain coordinate axes, units and data sources so that readers can independently judge the meaning of numbers.
- After translation or revision, the labels and numbers in the charts must be checked page by page. Machine-translated content requires manual review.
When many people make PowerPoint, they are used to pasting data into the page first and then thinking of ways to make it "look good". The common result is a page of dense numbers, or a color picture with no focus. Only by understanding the role of charts in PowerPoint can you determine whether to put charts, text, or tables on a page.
This article is written for people who want to make reports, courseware, project reviews, or defense slides. After reading, you should be able to answer three questions: What does the chart do for you, what content should not be charted, and what things should be checked before putting it in the chart.
The following discussion only talks about the judgment ideas and does not involve specific menu operations. If you still need to translate the prepared slides into another language, there are corresponding steps in the "Practical How to Use" section at the end of the article.
What is the function of charts in PowerPoint? Conclusion in one sentence: Let the relationship between numbers be seen at a glance
The core function of a chart is to convert the size, sequence, gap or proportion of a set of numbers into a visual shape, allowing the audience to grasp the pattern within a few seconds. You need to read the text to know the conclusion, the tables need to be compared box by box, and the charts can directly show judgments such as "rising", "falling behind" and "concentrated in a certain paragraph".
| your situation | Recommended practices | reason |
|---|---|---|
| Want to show how a certain indicator changes over time | Line chart | The direction of time can be seen at a glance, suitable for looking at trends and turning points |
| Want to compare the sizes of several projects | Bar chart | The comparison between length and length is intuitive, and the project name is also easy to read. |
| Want to explain the proportion of each part in the whole | Bar chart or stacked bar chart | Comparing length is more accurate than comparing area. There should not be too many segments. |
| Readers are asked to check exact figures | sheet | The table retains each value for easy search and comparison. |
| Just talk about a point of view or process | Text or diagram | Without data relationships, charts just add noise |
What is a chart, and what is the difference between "inserting a picture"
A chart is a graph generated from data, with clear correspondences between axes, scales, legends, and data points. Inserting a screenshot or drawing a decorative arrow do not count as a chart. They do not change with the data and the reader cannot check the quantities based on it.
The key to the distinction is this: a chart is a way of drawing data, not a page decoration. Charts in PowerPoint usually come with a data sheet, and the shape will automatically update after modifying the numbers, which is why it is more suitable for repeated modifications than screenshots.
How charts work: highlight patterns instead of filling them with data
When a listener looks at a chart, his or her eyes will first fall on eye-catching colors, steep lines, or long bars. So whether a picture can be effective depends on whether it only highlights one piece of information. If eight lines are drawn simultaneously in a coordinate system, the audience will first look for the legend instead of understanding the conclusion.
Before production, first write down what you want the audience to remember on this page, such as "new customer growth slowed down in the third quarter", and then decide what kind of graph to use to draw this conclusion. Other data will either be deleted or placed on spare pages or appendices.
Common misconception: The more fancy the chart, the more professional it will be.
Many people think that three-dimensional effects, gradient colors and shadows can make charts more advanced. In effect, these decorations distort the numerical sense. The foreground block of a three-dimensional pie chart will appear larger than its actual area, making it difficult for readers to judge the gap. A safer approach is to remove redundant borders, grid lines and decorations and retain only the necessary axes, data labels and units.
Another misconception is that the chart title only says "Sales Data" or "User Situation." The title should directly state the conclusion, such as "Sales in East China declined for two consecutive quarters." Readers will know where to look when they see the title. In addition, the data source and statistical caliber should also be noted. Charts without sources are susceptible to skepticism, and the audience cannot tell whether the numbers are comparable.
📊 Core comparison
| form | Good at expressing | Not good at expressing | Suitable page position |
|---|---|---|---|
| chart | Trend, size comparison, proportion, change range | Precise numerical values, complex conditions, textual arguments | The body of the data page |
| sheet | Precise numbers, juxtaposed information in multiple dimensions | See patterns quickly | Appendix, or pages that need to be checked item by item |
| Character gist | Opinions, conclusions, causal explanations, suggestions for action | Comparison between large numbers and multiple objects | Summary page, conclusion page |
The three are not substitutes for each other. A slide can be a "chart and a conclusion" or a "table and two explanations". If the audience needs to remember specific numbers while watching, a table is more suitable; if the audience only needs to know the trend, a chart is more labor-saving.
How to use it in practice
OmniDoc won't judge for you which chart to use, but it can help you with the translation of PowerPoint files and subsequent document organization. The common process is as follows:
- Complete the original slides first and check whether there is only one conclusion on each page and whether the title of the chart states this conclusion.
- Upload the .pptx file to omnidoc.top, select bilingual comparison or translation only, and wait for the processing to complete before downloading the result.
- Open the translation and check page by page whether the axis names, legends, numbers and units in the chart are consistent with the original version. Translated content requires manual review, especially professional terminology.
- If you need to convert the results into PDF and then modify the text, you can download the desktop client (download.omnidoc.top) and use the PDF editing function to change paragraph text, fill in tables, or export to Word, Excel and other formats.
🎯 Which method is suitable for you?
- The focus of the report is on "change": use a line chart, and the title directly states the trend and reasons.
- Audiences need to check specific numbers: attach a table next to the graph, or put the table in the appendix.
- Just two or three bullet points: No need to make a diagram, just use text and a concise list of bullet points.
- The page should be played on a projection: reduce the number of colors and make sure the font size can be read clearly in the back row.
❓ Frequently Asked Questions (FAQ)
1. How many charts can be placed on one slide?
There is no unified number. The key depends on whether the reader can explain it clearly in a short time. Two charts are suitable for comparison, but they should maintain the same coordinate range and color scheme; when there are more than two, it is usually easier to read by splitting them into multiple pages.
2. How to choose charts and tables?
Choose tables when you need to check specific values, and choose charts when you need to see trends or compare sizes. When both are needed, tables should be placed on the text page and tables in the appendix.
3. There is very little data, only three or four numbers. Do we still need to use charts?
When the numbers are small, it is usually clearer to write the values and comparisons directly in words. For example, "Project A has a higher completion rate than Project B" is more straightforward than a graph with only two bars.
4. How should the colors in the chart be used?
Use the same color for the same set of data, use a contrasting color for an item that needs to be emphasized, and try to keep the colors within three types. Color-blind readers should also be considered. Don't just rely on red and green to distinguish high and low. You can supplement it with numerical labels or patterns.
5. Why do charts need to label data sources?
Source and caliber let the audience know where the data comes from and what the statistical scope is. Charts without sources are easy to question and difficult to cite later.
📝 Summary
The role of charts in PowerPoint is to turn the relationships between numbers into shapes that readers can quickly grasp. It is suitable for presenting trends, comparisons and proportions, but is not suitable as a substitute for precise data and complete arguments. Write a one-page conclusion first, then choose between charts, tables, and text, and most pages will make it clear.
