Academic Writing Task 1 · line graph

Global usage trends of five communication services from 1998 to 2008

The line graph gives data about the number of users of five different communication services worldwide from 1998 to 2008.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

Number of users of five communication services worldwide (1998-2008)
020406080100199820002002200420062008
  • Landline service
  • Internet service
  • Mobile broadband
  • Cellular phone service
  • Fixed broadband
View the data
199820002002200420062008
Landline service151617192019
Internet service358111921
Mobile broadband000013
Cellular phone service41117304265
Fixed broadband000124

Chart redrawn by BandLadder from the data in the original IELTS practice task. Many IELTS practice tasks come from the Cambridge IELTS series (Cambridge University Press & Assessment); all rights in the original tasks remain with their owners.

Band 8 sample answer

The line graph illustrates the global number of users for five distinct communication services between 1998 and 2008. Overall, it is clear that cellular phone service witnessed the most dramatic growth, whereas landline service remained the most consistent throughout the period. Other technologies, such as internet and broadband services, showed gradual upward trends.

In 1998, cellular phone service started at 4 units, but it surged significantly to reach 65 by 2008. Conversely, landline service began at 15 in 1998, peaked at 20 in 2006, and slightly declined to 19 by the end of the period. Internet service also saw a steady rise, growing from 3 in 1998 to 21 in 2008, eventually overtaking landline usage.

Regarding the remaining services, fixed broadband and mobile broadband were virtually non-existent at the start of the period. Fixed broadband usage remained negligible until 2004, after which it climbed to 4 by 2008. Similarly, mobile broadband only began to register on the chart in 2006 at 1, reaching 3 by 2008. In summary, the decade was marked by a massive shift towards mobile cellular technology, while traditional landline usage plateaued.

185 words. Every figure in the answer comes from the chart above.

How to write about line graphs

exponential
becoming more and more rapid over time
surged
increased suddenly and by a large amount
plateaued
reached a state of little or no change
negligible
so small or unimportant as to be ignored
overtaking
becoming greater in number than something else
witnessed
seen or experienced a particular trend occur

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Frequently asked questions

What should the overview say?

While cellular phone service experienced exponential growth to become the most popular medium, landline usage remained relatively stable, and other services saw only modest increases.

How long should an IELTS Task 1 answer be?

At least 150 words; 170 to 200 is the safe range. Spend about 20 minutes on it and leave 40 for Task 2, which carries twice the marks.

How do I describe line graphs?

Overview first: the overall direction of each line and which was highest. Group lines that move together instead of describing each one in turn. Give the start and end figures plus the peak or low point, not every value.

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