As of my knowledge cutoff date in early 2023, there isn't a universally recognized author known simply as "G.O." Without additional context or a full name, it's challenging to provide a short description of a specific author by those initials alone. Authors are typically referred to by their full name or a well-known pseudonym if they choose to use one. If "G.O." refers to an acronym for an organization, a lesser-known author, or a character in a work of fiction, it might be best to provide more details to receive an accurate description. If you can provide a full name or clarify the context in which "G.O." is known, I would be more than happy to help with a description.