Kinds Of Fictional Worlds

Sometimes a consistent fictional world presented in many instalments is created by a single author, e.g., Middle Earth by JRR Tolkien or the Technic History by Poul Anderson whereas some other fictional worlds are multi-authored, e.g., Star Trek. Quantity overcomes quality. Of these three series, I am a fan only of the Technic History. Talented authors can both create their own series and contribute to scenarios created by others, e.g., Anderson to the Man-Kzin Wars period of Larry Niven's Known Space future history series; Niven to Star Trek. At the end of The Sandman: Worlds' End, Charlene Mooney decides to stay in the Inn of the Worlds' End to work in the kitchen and we are pleased to find that she is still there in Mike Carey's The Furies. (At least, I was.)

Anderson fans can check out Gaiman for fantasies featuring Norse gods, particularly Odin, as in some novels by Anderson. A body of myths is another kind of fictional world with no single author.