Good parody, said E.B. White, should be funny in itself, regardless of one's having read the work parodied. Skilled in lampoonery, Cerf and his cohorts have produced this celebration of sequels and spinoffs that not only pass muster on their own, but also could inspire daring readers to reexamine the original works (or at least the Cliff Notes) for even more perplexing literary diversion.
This is not Volume 11. It's the first. I don't think there is more than one volume of this book.