Not every book lands immediately; some of them take some time (and perhaps even a re-read or two) for their appeal be apparent. Today we want to know about the books you hated at first — but then completely changed your mind about.
Maybe the turnaround happened mid-book. Or maybe you had to wait some years and give it a full re-read before you could really enjoy it. Tell us in the comments what the book was, why you hated it at first, and what finally brought about your about-face.