I can't stand to not finish a book, but I know there have been several which were so bad I could not bear through them. Unfortunately (or fortunately, depending on your view) I cannot seem to remember their names. I suspect I blocked them out as they were so bad.
I agree with most of the choices listed here, a lot of that being books I would never read in the first place. But, the author that comes to my mind as being unreadable for me was Ernest Hemingway. I read two of his books. The first because everyone said I should and the 2nd to see if it was as bad as the first. I simply could not get into his strange style of conversation. I kept thinking "people do not talk like that".
Another book that pops into my head just now is a children's book I read to my daughter, Fury of the Broken Wheel Ranch. We stuck through it just to find out how it ended, but the descriptions were rather fantastic and the entire story turned into a silly play between us. Great fun and a bonding moment, but not really worth the read.
