This document provides information about different types of graphs. It defines what a graph is as a two-dimensional drawing that shows the relationship between two sets of numbers using a line, curve, bars, or other symbols. It then describes several common types of graphs: circle graphs that display data in circular sections; bar graphs that use vertical or horizontal bars of equal width; pictographs that use pictures and symbols with a key; broken line graphs that join data points over time with line segments; continuous line graphs where points on the line also have meaning; and scatter plots that show a set of plotted points.