What is the benefit of using line charts in data visualisation?

Line charts are used to plot the relationship or dependence of one variable on another to display changes or trends. The main benefit of using line charts is that they are ideal for visualising continuous data and identifying trends, patterns and fluctuations over very long periods or continuously changing data. They are most often used to evaluate how data has changed over time. Line charts are widely used in fields such as finance, economics and science to monitor progress, forecast future data and analyse relationships between variables.