The indicia (see scan by clicking on the Resources link on the right side of this page) reads just "Ghost," with a lot of white space on both sides of the word. The cover and later issues read as "Ghosts." Steven Rowe's understanding is that it was at first to be titled "True Ghost Stories" - thus the white space in the indicia, but then it was changed to "Ghosts". When they updated the indicia they whited out "True" and "Stories," but they forgot to add the "s."