Answer: Miranda rights are only required when the police are questioning you in the context of a criminal investigation and hope to or desire to use your statements as evidence against you. Otherwise, Miranda doesn't apply and they're not required to be read. (Information from :Miranda warning.com)
Expresar una gran cantidad de información o datos de forma sencilla Dado que hacen uso de símbolos, los pictogramas llaman la atención, es decir, es una forma atractiva de representar datos.