You can also see the shape of a distribution based on a boxplot, although some features such as gaps are not visible. See the graphic below with a boxplot displaying the same data as the histogram below it for each image. See how "uniform" and "bimodal" look very similar? If a boxplot is your only graphical display, likely the best you could say is "mostly symmetric" if the boxplot has a somewhat symmetric appearance. Even though there is some ambiguity in shape, boxplots do reveal a skew pretty well.
Determine the shape of the distribution for each boxplot below.