Definitions

Alias - see Pseudonym
ANV - Author Name Variation. (can be used for any person working with a printed/published work, not just an author)
CNV - Company Name Variation
Ghostwriter - A person who writes a text that is then attributed to a different person.
Master Release - A term that originated in the Discogs database. It is used to group together different editions/releases of the same work.
Pen Name - see Pseudonym
Printing - A new printing of a book because demand for retail copies is high. Please note that a new printing does not necessarily mean that the content has changed.
Pseudonym - A name that an author uses which is not their original or true name.