Point and figure charts are used by many professional forex traders. Unlike other charts, they are not based on time but only plot price movements. When the price moves a certain number of pips (the box size), an X is plotted for an increase or an O for a decrease. For a reversal, the price needs to move the box size multiplied by the number of boxes in the reversal amount. Common patterns in point and figure charts like double tops/bottoms and triangles can provide trading signals when prices break established support and resistance levels. Professional traders find point and figure charts especially useful for identifying major trend reversals in the forex market.