Listing of usual metatags?

[BrittaDK]

Is there anywhere a list of the tags, that usually are in use for metatagging e-books?
For Bibtex there are huge lists, and I could consider using the tags, I know from bibtex.

If I want to link to an URL for the author, is the metatag: URL?
If I want a genre, is the metatag: Genre?
If there are two genres, like roman classic and fable, can I give two tags genre?
If I want to put an order to a series, can I somehow indicate: No 1 of 7?
DIfferent languages can they be tagged as language?
An author with several synonym, kan all his/her names be entered as author?
E.g. Abraham a Sancta Clara had the following synonyms : Gaudentius Hilarion, Hilarius von Freudenberg, Theophilus Mariophilus and his christian family name was Johann Ulrich Megerle

If there are entered several authors for a book, how will it list?

I hope you won't feel annoyed by all my questions.