Summarized some methods, it is hard to say how novel, but quite useful. But there are also many methods that are fancy, impractical and error-prone. I have seen some before. My advice is: if you have a good foundation. You can have a look, get rid of the rough and extract the fine, and add some ideas; If the foundation is not very good, you can put this book aside first. It is most important to master the foundation first.