Are Dadeshan people's books worth buying?

This book, from heavenly stems and earthly branches, classification, star's attributes and temperament to various practical solutions, is completely tailored for China fans. Wei Zimen's beginners strongly recommend reading this book, which is called Wei Zimen's dictionary.

Dadeshan: Growing up in a remote mountain village in Guiping, Guangxi, when I was a child, the villagers nicknamed me Dadeshan. In my memory, the book is called "Dade Mountain Man, Mountain Village Man" and the book is called "I am sincere in numbers".