This book contains quite a few facts about various Japanese and Korean films and filmmakers, and the authors are clearly enthusiastic about their subject matter. However, the organization of the book and its chapters is so poor that it's difficult to discern exactly what the point of the essays are. Each chapter centers, at least for a few sentences, on a single movie, but most quickly spiral off into amorphous discussions of related people, movies, and topics. There is a good amount of speculation--discussion is filled with phrases such as "it is easy to image that," "it is quite possible that," and the word "arguably." Further, the content of the chapters is not coordinated, resulting in repetition and a lack of an overall structure.
I would read this book if you are interested in the particular movies or directors it mentions. But if you're looking like an overview and analysis of Korean and Japanese cinema like I was, then I would suggest looking somewhere else.