You are the only person who can decide how to set it up, at least until you
have a publisher, but see here:

So You Want to Write a Book with MS Word
http://daiya.mvps.org/bookword.htm

If you wanted advice on what goes into a biography, this newsgroup is
designed to advise on the technical aspects of using Word, not to give
advice on the *content* of documents written in Word. It is not the best
place to ask your question.  Search the web for examples (using Google at
http://www.google.com/ or another search engine), or use your imagination.