Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Irvings most powerful book

This book has everything that makes John Irving's novels great but probably isn't the best of his novels to read first. It has a little less of the thick, complex characterization and oddballs than some of his other books, but of all his books, I do consider this the best yet. The opening chapter, The Foul Ball, is so well written that it is humbling just to read it, which is true of much of John Irving's writing. There's a forshadowing throughout the entire book, of Owen's entire life and existence tied to a single, impending event at the end of the book, that is awesome. It is that element of the book, that really distiguishes it, in my mind, apart from his other novels. The imagery is fascinating to read. I remember finishing this book, closing it, and just saying "Wow." It was the most powerful ending of any of his books, which says a lot.