(13)To meet the needs of retail investors, it is necessary to ensure that information on PRIIPs is accurate, fair, clear and not misleading for those retail investors. This Regulation should therefore lay down common standards for the drafting of the key information document, in order to ensure that it is comprehensible to retail investors. Given the difficulties many retail investors have in understanding specialist financial terminology, particular attention should be paid to the vocabulary and style of writing used in the document. Rules should also be laid down on the language in which the key information document should be drawn up. Furthermore, retail investors should be able to understand the key information document on its own without referring to other non-marketing information.