除了线图之外，出现 IELTS Writing Task One 的其他类型图表还包括饼图(pie chart)、表格(table)和柱状图(bar chart)，不过今次我只集中讨论line chart。

A line graph is used to spot trends in data over time. In order to produce a line graph, data is required. The data often comes in the form of a table. A student recorded how much time they spent ...

William Playfair, the father of data visualisation, changed the way we understand information. His bar graphs, pie charts, ...