\begin{definition}[Definition:Pictograph]
A '''pictograph''' is a variant of a bar graph whose  bars consist of a number of icons or other pictorial symbols arranged in a (usually) line.
:$\begin {array} {r|l}
\text {Happy} & 😊😊😊😊😊😊 \\
\text {Sad} & 😢😢😢 \\
\text {Unimpressed} & 😒😒😒😒😒😒😒😒 \\
\text {Disgusted} & 🤢🤢🤢🤢 \\
\end {array}$
\end{definition}