Graphs are very useful and they can show any type of information in a quick and easy manner. In general graphs are used to reveal a trend, compare statistics, etc. Graphs can also be used to establish relationship between two different variables. Graphs have several forms and you are free to choose the one that suits your needs the most. You can select the graph type with different display properties to represent the data and that depicts data in an effective way.
Infographics by Types of Graphs