Lesson 5 of 22
Selecting features and writing an overview
An overview gives the main message of the visual. It is the summary a reader should remember after the details are forgotten.
The two videos both emphasise a paraphrased introduction, a clear overview, and grouped supporting details. The first demonstrates adaptations for combined visuals, maps, and a process; the second gives particular attention to reading labels, identifying major patterns, and checking the finished report. This course applies those broad principles through new examples. FasTrack IELTS video, IELTS Advantage video.
Find the message before writing sentences
For a chart, consider the overall direction, dominant category, largest change, or a reversal in rankings. For static data, consider the main contrast and whether the same ranking appears across groups. For a map, consider the largest physical or functional change. For a process, consider whether it is linear or cyclical and what happens from start to finish.
Usually two or three well-chosen points are enough for a focused overview. The visual determines what is useful; this is not a fixed quota.
Practice data: Cycling rises from 12% to 28%, bus use increases from 25% to 30%, and car use falls from 63% to 42%.
Overview: “Overall, car use declined while both alternative modes became more popular. Cars nevertheless remained the most widely used form of transport.”
The overview captures direction and ranking. The detail paragraphs can supply the figures.
Overview versus detail
| Overview | Detail |
|---|---|
| Cycling recorded the largest increase. | Cycling rose by 16 percentage points, from 12% to 28%. |
| The site gained several leisure facilities. | A swimming pool replaced the warehouse in the eastern section. |
| The process ends with packaged products. | The dried material is sealed in bags and transferred to storage. |
Keeping most figures in the details helps maintain this distinction. A date or an essential count of stages can sometimes clarify the big picture. The objective is a useful summary, not a mechanical ban on every number.
Avoid empty summaries such as “There were many changes” or “The figures were different.” State what changed and how.
Report visible patterns without inventing explanations
“The area became more residential” can be supported by the replacement of factories with housing. “The local government wanted to attract wealthy families” invents a motive.
Similarly, “The higher-fee institutions also recorded higher graduate earnings” describes an observed association. “Higher fees caused higher salaries” makes a causal claim that a simple comparison cannot establish.