Full length monographs on an author may be found in library catalogs. Use the author's name and dates as a subject heading search, e.g.
Coetzee, J. M., 1940-
Miller, Arthur, 1915-2005.
Shakespeare, William, 1564-1616
Woolf, Virginia, 1882-1941
Atwood, Margaret, 1939-
Reference sources will include shorter biographies, and will often provide recommended full length works.