Not as different from the movie as I thought.
Some simple differences, and a few of the characters are quite different physically from the actos who played them in the movie (Humperdink, Westley) and the narration part of the story is different, with the narrator of the story being the author talking about being told the story as a child by his father, and having interludes about the publishing of the story, and the “original” version of the story but overall the same story, with most of the lines in the movie being word for word from the book.
Better than the movie in that there is a lot more content, especially on some of the supporting characters (Fezzik and Inigo).
If you liked the movie, read the book. If you’ve never seen the movie or read the book, watch the movie and then read the book, both excellent.
