Somehow I don’t think that the worst book ever written would be still in print, often read and examined in schools, and be popular both among younger alienated readers and among the types of people who try to get books banned and removed from libraries and bookstores, year after year.
If you want worst books, you’d have to clarify. Worst written? Try Harlequin Romance novels, which are written specifically not to aim above a 6th grade reading level.
Worst as in so bad they were self-published? There’s a current commercial going around television by some quack who claims to have “discovered” the cure for diabetes, and so he wrote a book that I’m guessing is some sort of love letter to his dead mother, who had diabetes. And of course, since he “discovered” the cure for diabetes, strangely, no actual publishing house would give him a book deal, so he vanity published. I bet it’s a great read. Full of “facts” too.
Worst as in novelizations of movies? Because who wants to watch a Star Wars movie when they could read a novelization of it?
Worst as in an author became famous for a book series, and then died, but ghost writers kept the series alive: V.C. Andrews and your ghost writers, I’m looking at you and your lame family-trapped-in-an-attic-for-generations books.
Worst as in old pulps that had one print run and then vanished to the realm of attics, garage sales, thrift stores, used bookstores? Books that are so bland and so cliche-ridden, that you read a page and immediately forget what you just read.
Worst as in written by an author who is so famous, overrated and ego-bloated that they now write on auto-pilot to collect on a publishing contract, even though you gave up on their books long ago and don’t know anyone who reads them anymore, but apparently, before their next title has even come from the printing presses and to the bookstores, they have their next “best seller”?
Worst as in books that get published simply because a famous celebrity wrote some god-awful poetry and is therefore considered a genius?
Worst as in books aimed at teenagers, that are insta-biographies of the latest big stars, so kids can learn everything they ever wanted to know about the hottest new celebrities?
Catched in the Rye doesn’t come close to any actual worst books ever written, that much I can tell you.