I was having a first edition of The Mote in God's Eye signed by one of the authors, Larry Niven. He flipped it open to a page he had memorized, crossed out a word, wrote in a new one, then signed it and gave it back.

The phrase he'd altered was "They should have been spared spaced." That's "spaced" as in "they should have been thrown out an open airlock.

So that printing error would have been pretty confusing for a first-time reader of the book.

Characters name is Jacen, not Jcen

Gonig instead of going

Glas instead of glass

Should be walked not talked

Capital I in give

Not a book, but in the early versions of the movie Heat, Al Pacino's "great ass" scene also included flecks of spittle flying off his lips. They removed it on the DVD version, which was a shame as it really did make him look unhinged.

I took this last night. Definitely not the worst, but whenever I stumble upon a grammatical or spelling error I like to share with people and pretend I'm dying.

A “Reading Club” version of a Michael Crichton book, but I don’t remember which title it was. Lots of typos, missed punctuation, and misprinted letters. The book was still good though.

My own.

I run Paizo APs, so I nominate all of them. I know it's from them writing chapters simultaneously so they can keep to a mo they release schedule, but some are really jarring. Currently running Triumph of the Tusk where one chapter starts with a character giving a speech to the party, despite having been killed off and replaced in the adventure background at the start of the previous chapter.

I read a few ebooks of questionable provenance. I've learned to see past the strange typos, beyond what the OCR recognized, to see the fuzzy imperfect typeset must have been.