You’ve probably seen one or more stock charts — maybe the ones with vertical bars and little horizontal dashes or those with rectangles that look kind of like sticks of dynamite. Some charts have a meandering line going across the whole graph. Is this all some type of visual Morse code? More like a clever way of conveying a lot of information with some lines and dashes. (Come to think of it, that does sound like Morse code.) This article explains how to read those bars, boxes and lines, so that you can understand the stories they’re telling.