See also World Adventure Libraries for: Bonanza, Flash Gordon, Mandrake the Magician, Man from UNCLE, Phantom, Superman, Tarzan.
In general these titles don't come up for sale very often. While the interior stories are less satisfying than if they were comic strips, these titles (and Batman World Adventure Library in particular) are highly collectible for the fantastic Walt Howarth covers where they appear. The #5 Joker cover is increasingly sought after.
Note: some PR issues may have no value. Selected issues in FN, VF or VF/NM may not exist in some titles.