Banner Ads are a kind of advertisement that you see on websites. People sometimes call them Display Ads, and they are placed on different parts of a webpage: at the top, at the bottom, at the sidebar, and even within the content; areas where visitors' eyes are generally drawn to.
Banner advertisements are used on web pages to increase brand recognition and drive clicks, purchases, and leads.
It is said to be the most overused type of ad-everyone in the world who has ever set foot on any online property is bound to see at least one in his lifetime. And if that person frequents a good number of websites on a daily basis, then he or she will be seeing them more often.