IELTS Writing Task 1 Chart Types: Line Graphs, Bar Charts, Pie Charts, Tables, Processes and Maps
Task 1 questions come in seven forms. Each one has a different 'story' to find, and knowing what to look for before the exam saves you three or four minutes of planning time.
Line graphs — trends over time
The most common type. Find the overall direction of each line (up, down, flat), the biggest change, and any points where lines cross. Group lines that behave similarly into the same detail paragraph.
Bar charts — comparisons
Bars compare categories, sometimes across two or three time points. Find the highest and lowest bars and any surprising exceptions. If there is a time element, treat it like a line graph and describe change.
Pie charts — proportions
Pies show shares of a whole. Your overview should name the largest and smallest segments. Use fraction language: 'just over half', 'a quarter', 'a negligible proportion'. With two pies, describe how the shares shifted.
Tables — dense data
Tables have the most numbers and the least obvious story. Do not describe row by row. Rank the categories, find the extremes, and group similar rows together. You should report perhaps 8–10 of the figures, not all of them.
Processes — how something works
Process diagrams show stages, with no numbers at all. Use the passive voice ('the beans are roasted', 'water is pumped') and sequencers ('first', 'following this', 'finally'). Your overview states how many stages there are and what the start and end points are.
Maps — changes to a place
Map questions show a place at two points in time. Your overview summarises the biggest changes (e.g. 'the area was transformed from farmland into a residential zone'). Use location language: 'to the north of', 'adjacent to', 'on the outskirts'.
Mixed charts — two visuals together
You get two related visuals, often a graph plus a pie. Write one detail paragraph per visual, and use the overview to state the relationship between them.
Practise every type
Our Writing Task 1 practice page has a bank of 70 questions — ten for each chart type — with real visuals, instant AI feedback on your report, and Band 6.0 and 7.0 example answers for every question.
Put it into practice
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