(58) The principle of transparency requires that any information addressed to the general public or a data subject be concise, easily accessible and understandable, be formulated in clear and simple language, and, where appropriate, be further visualized. This information may be provided in electronic form, for example, via a website, when directed to the general public. This is particularly true when the large number of entities and the technological complexity of the activities make it difficult for the data subject to know and understand whether personal data pertaining to him or her is being collected, by whom and for what purpose, such as in the case of online advertising. Given that children deserve special protection, all information and communications - when the processing concerns a child - should be formulated in such clear and simple language that the child can easily understand them.