Literary pseudonym (3,4)
I believe the answer is:
pen name
(Other definitions for pen name that I've seen before include "Author's alias" , "Nom de plume" , "Writer's pseudonym" , "such as Mark Twain" , "Nom-de-plume" .)
I believe the answer is:
pen name
(Other definitions for pen name that I've seen before include "Author's alias" , "Nom de plume" , "Writer's pseudonym" , "such as Mark Twain" , "Nom-de-plume" .)