Odred Weary, Drew Dogyear, Regera Dowdy: these were some of the pseudonymous anagrams used by Edward St. John Gorey, a fantastical personage as likely as not to show up at his beloved ballet in one of the massive fur coats that recurringly adorned his dapper men-about-town. Gorey's books are coveted, both out of print and not, whether written or decorated himself or illustrated for another writer. An example of the latter is 1961's Scrap Irony by Felicia Lamport (left and below). She wrote the satiric verses; he provided the inimitable artwork.
Abe Books currently has a worthy profile called The Eerie Glory of Edward Gorey, complete with a video on one of his most outré titles: The Recently Deflowered Girl, written under the pseudonym Hyacinthe Phypps. (It is viewable as a scanned pdf here.)