this term can refer to several different concepts:
- The first time an author appears in print, i.e. Henry D. Thoreau's first appearance in print was as an anonymous obituary in a Concord newspaper.
- The first time a specific writing of an author appears (in a magazine or newspaper or anthology), Emily Dickinson's poem "I'm nobody Who are you" appears first in "Life", March 1891.
- The first time a specific subject is treated in book form, i.e. the first American book on the subject of dry fly fishing was written by Emlyn Gill and published in 1913.