As a general rule, one ought to proofread the...

...title.  Misprints on the cover frequently engender a certain skepticism in the reader.  (In this instance, though, the book itself is a facsimile reprint, so I'm not particularly concerned about what's inside.) 

The transgressor in this instance is a very small press, but famous publishers are hardly immune to the "we don't need to proofread no stinkin' titles" phenomenon.  For several years, OUP treated readers to a new novel by Oscar Wilde, called The Portrait of Dorian Gray.