A GREAT PRIMER ON CHARTS in FileMaker 13 from Kevin Franks at FileMakerhacks:
Recent versions of FileMaker make it super simple to build a “current found set” chart even if you have absolutely no idea what you’re doing. Just a) sort on any field, and then b) choose “Chart by” + the field you just sorted on…
…and you will be handed a chart on a silver platter, with zero stress and zero learning curve.
But he doesn’t stop there, of course. Check out the four methods used to produce different charts at the link.