38As the Advocate General stated in points 54 and 55 of his Opinion, it follows from that provision that the controller is obliged to take appropriate measures to provide the data subject with all the information referred to, inter alia, in Article 15 of the GDPR, in a concise, transparent, intelligible and easily accessible form, using plain and clear language, and that the information must be provided in writing or by other means, including, where appropriate, by electronic means, unless the data subject requests that it be provided orally. The purpose of that provision, which is an expression of the principle of transparency, is to ensure that the data subject is able fully to understand the information sent to him or her.
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