This book is a hard read. First, it was originally written in Chinese and it is clear that the translator's first language is not English, because the grammar is incorrect in places. Next, it is written at above high school reading level and covers statistics formulas that can be difficult to understand at first (at least they were for me). However, I believe this can be a very valuable resource. If you already have an understanding of handicapping and are willing to do the work to learn the statistical formulas presented in the book, then I believe you can wager profitably at the racetrack.
If you are looking for a book to teach you handicapping skills, then this book is not for you. However, if you already have a good knowledge of handicapping and are looking for something to help your wagering become profitable, then perhaps you should give this book a look.