These tags , as a rule, are not used at the same time. Tag function - identification of the author or affiliation of the document. The Author tag contains the name of the author of the Internet page, in the event that the site belongs to any organization, it is more appropriate to use the Copyright tag. At the moment they are of extremely low relevance.
< meta name = "author" content = "Tom Handsome" />
In addition, the Author and Copyright tags can contain an additional attribute "lang", which allows you to define the language used when specifying a property value
< meta name = "copyright" lang = "de" content = "Ursula Knopf" />