Academic Task 1
How to Write an IELTS Task 1 Overview
How to write an IELTS Task 1 overview starts with the shape of the visual. Academic Task 1 asks for a summary of that visual. On the public Writing scale, Task Achievement at Band 7 asks for a clear overview of the main trends, differences, or stages. The sentence that does this job is short, and it has to be true of the chart in front of you.
The notes below paraphrase the public IELTS Writing band descriptors published on ielts.org. The file itself is marked as updated in May 2023. This page does not reproduce that scale, and it does not award a band. A script has to fit the positive features of a band as a whole.
Task Achievement is the Academic Task 1 name. Task 2 uses Task Response, because that task is an essay with a position. If the draft in front of you answers a question rather than a chart, use the Task Response band 6 to 7 guide. The four criteria sit side by side in the band descriptors guide. The rest of this article is the overview sentence in an Academic report. General Training Task 1 is a letter, and a letter has no chart overview.
What the overview is asked to do
Band 5 on the public scale describes detail recounted mechanically, with no clear overview, and a tendency to focus on details. Correct numbers can still sit there when no sentence says what the visual does as a whole.
Band 6 says the response addresses the requirements of the task and presents an overview with information appropriately selected. Key features are presented and adequately highlighted, while details may be irrelevant, inappropriate, or inaccurate. A sentence that would fit a different chart is the wrong selection.
Band 7 asks for a clear overview of the main trends, differences, or stages, and for key features that are clearly presented and highlighted. The public task asks you to summarise the information by selecting and reporting the main features, and to make comparisons where relevant. The overview is that selection, stated once and early. The comparisons, with their figures, belong in the body.
Band 8 covers the requirements sufficiently and presents, highlights, and illustrates key features clearly and appropriately. The public task also asks for at least 150 words. The overview is one part of that length.
Choose the pattern, then write one or two sentences
Do this on the visual before you draft the full report. Every chart on this page was invented as an example. None is an official task, a past paper, or a record of a real city, class, museum, or factory. Each overview describes its labelled chart. It is an illustration, and it is not a score.
- Name the type, the unit, and whether the visual has time or stages. A line across years is a trend. One set of bars is a difference. A process is a sequence.
- Mark the main pattern in plain words: what rose, what is largest, how many stages there are, and whether the sequence returns.
- Mark one exception when there is one: the line that falls, the flat category, or the stage that repeats.
- Write one or two sentences from those marks, so a reader can picture the shape.
- If the same sentence fits a different chart of that type, it has not selected this one.
- Keep the figures for the body, then reread the overview against those figures and change it if they disagree.
Line graph: the direction, and which line finishes ahead
Example line graph, invented for this page. Two lines show weekday journeys in one invented city. The unit is thousands of journeys. The values in the table are the points on those lines.
| Year | Bus (thousands) | Car (thousands) |
|---|---|---|
| 2010 | 40 | 70 |
| 2015 | 55 | 62 |
| 2020 | 80 | 45 |
Example overview for this line graph. Overall, bus journeys rose at both steps and finished higher than car journeys, which fell throughout.
The sentence names both directions and the end of the comparison. Bus moves from 40 to 55 to 80, and car from 70 to 62 to 45. The bus line is above the car line only in 2020, so “finished higher” matches and “higher throughout” does not. Those figures stay in the body.
Example of a sentence that misses this chart. “Overall, both means of transport increased.” Car falls at both steps. “Overall, there were changes over the period” could sit under any line graph, so it has not selected these two lines.
Bar chart: the largest, the smallest, and the contrast
Example bar chart, invented for this page. One year. Thousands of books borrowed from three libraries. There is no second year, so the chart has no trend over time.
| Library | Books borrowed (thousands) |
|---|---|
| Central | 90 |
| North | 40 |
| Riverside | 25 |
Example overview for this bar chart. Overall, Central lent the most books and Riverside the fewest, with North between them.
The pattern is a difference. The body can then give the example figures, Central 90, North 40, and Riverside 25. “Increased” needs a second time, and this chart has none.
Example of a sentence that misses this chart. “Overall, borrowing rose in every library.” Nothing on these bars shows a rise.
Pie chart: the largest share, and what makes up most of the circle
Example pie chart, invented for this page. Shares of daily water use in one diagram. The percents were chosen so they sum to 100. They are not a measurement of any household.
| Use | Share of the diagram |
|---|---|
| Shower | 40% |
| Toilet | 25% |
| Clothes washing | 20% |
| Kitchen | 10% |
| Other | 5% |
Example overview for this pie chart. Overall, the shower is the largest share. Together with the toilet it accounts for most of the diagram, while the kitchen is a small share.
“Most” is checkable here: 40 and 25 sum to 65, which is more than half. The kitchen is 10. “Other” is 5, so the sentence does not call the kitchen the smallest slice. The body can compare two slices, such as the shower and clothes washing, using the percents on the example.
Example of a sentence that misses this chart. “Overall, water use was split into five equal parts.” These slices are not equal.
Table: the row that changes place, and the row that barely moves
Example table, invented for this page. Visitors to three museums, in thousands. Two years, so the overview can name a change as well as a ranking.
| Museum | 2015 | 2020 |
|---|---|---|
| North Hall | 120 | 90 |
| Central Hall | 80 | 130 |
| East Hall | 50 | 55 |
Example overview for this table. Overall, Central Hall rose to become the most visited, while North Hall fell from the highest figure. East Hall stayed the least visited, and its change was much smaller than the change at the other two.
The first sentence is the change in rank. The second is the exception. In 2015 North Hall is highest, at 120. In 2020 Central Hall is highest, at 130, and East Hall is still lowest. East Hall changes by 5, North Hall falls by 30, and Central Hall rises by 50, which is why “much smaller” matches this table. The Task 1 figures guide is the cell-by-cell check. An overview fails when the rank it announces is a different rank from the grid.
Example of a sentence that misses this table. “Overall, every museum became busier.” North Hall falls from 120 to 90.
Process: how many stages, and whether the sequence returns
Example process diagram, drawn for this page. It shows one way a glass bottle might be recycled. It is not an official diagram and not a description of a real plant. The stages, in order, are:
- Bottles are collected from street bins.
- They are sorted by colour.
- They are crushed into small pieces.
- The pieces are melted.
- The melted glass is moulded into new bottles.
- Those bottles are returned to shops, and collection can begin again.
Example overview for this process. Overall, the diagram has six stages, from collection through moulding, and it cycles because the finished bottles return to use.
A count of the stages and a statement about the cycle are the main features. The body then walks the order. A linear process, one that ends and does not return, gets the other cycle sentence: it runs from the first stage to the last and stops. Say which of the two the drawing shows.
Example of a sentence that misses this diagram. “Overall, glass is recycled in several ways.” The drawing shows one sequence.
A map is the other Academic visual this page does not walk through. The overview there names the main change in use or in location, and the figures guide already sets that sentence beside the other chart types.
A tidy sentence can still miss the chart
A list of accurate numbers with no summary sentence is the Band 5 pattern of detail recounted mechanically. The Task 1 common mistakes guide treats a missing overview as a frequent failure. “Overall, there were many changes” selects no trend, difference, or stage. The Band 7 Task 1 sample uses the other shape: one overview, then a small set of comparisons.
Test all, both, every, most, and the largest against the category most likely to break them. “All categories increased” is a clear shape, and it fails when one category falls. A cause such as “because the city opened a new bus lane” belongs in the report only when the chart itself prints that reason. The public task asks for a summary and for comparisons where relevant.
Where the sentence sits, and what the body still has to do
Place the overview early, usually after one opening sentence that names the visual, the items, and the unit or the years. That opening introduces the chart. The overview states the pattern. Later paragraphs carry the key features, the comparisons, and the figures.
Trend verbs come after the pattern is true. “Rose sharply” matches a line that is actually sharp. On the example line graph, “rose at both steps” already matches the bus points. Word choice and repetition sit under Lexical Resource. Use the lexical resource band 7 guide once the overview matches the chart. If the draft is an essay, the repair for a blurred position is Task Response.
Read the overview against the chart you can still see
On this site the checker scores the words you submit. The IELTS Writing Checker takes a pasted report, and it also takes a photo of a handwritten report. Recognition of a photo runs in the browser. You confirm the text before the diagnosis. The chart stays in front of you. The Task 1 checker is the door for charts, maps, processes, and tables. The chart-upload guide is the sequence for a photo: confirm the recognised words, then match them to the visual.
Paste the report with the task wording if you have it. Read the Task Achievement line for the overview before the overall estimate. The methodology page describes the product as a diagnostic and revision tool. A band estimate shows a likely bottleneck. It is not an official IELTS score. The form runs from 50 words. A complete Academic Task 1 response is still at least 150.
Paste one Academic Task 1 report. Read the Task Achievement note for the overview, then check that sentence against the chart you can still see.
The form runs from 50 words. A complete Academic Task 1 report is at least 150 words.
What this page is not claiming
This site is not affiliated with IELTS, the British Council, IDP, or Cambridge English. The band descriptions here are a paraphrase of the public Writing descriptors, so you can revise a draft. They are not the official wording, and they are not a result. Only an official IELTS test assigns an examined band.
The five charts above were drawn as examples so each overview could be checked against a label. They are not past papers and not evidence of a band. On your own visual, mark the main trend, difference, or stages, write the sentence, and test every universal word against the chart.