Michael Beirut is the renowned graphic designer behind Hillary Clinton’s logo, among other famous wordmarks and iconography design projects.

In a 4 minutes video Beirut points out what really makes a design work, as well as why logos are overrated. He covers three main types of logos – the wordmark, the pictorial logo and the abstract iconography -, and then introduces a fourth type called the logo system, which includes examples such as Google’s doodles and MTV’s.