First, this book does not contain 52 methods for solving Soduku puzzles — essentially, it contains, maybe, six. There are 52 "chapters" but.... Having said that, if you've not worked a Soduku puzzle or you have worked them but haven't figured out a systematic way to work Soduku puzzles, then this is a good book. On the other hand, if you already scan rows and columns, if you know the significance of doubles and triples in rows/columns/boxes, if you already eliminate impossibles, then this book is not for you.