"Waterways" Wei Li Tao Yuan is the Northern and Southern Dynasties book. View from the title, this book is another called "Water" book as a "note." Things Indeed, one of the Three Kingdoms period has been unknown author wrote a book called "Water" book, the content is very simple, the book only more than eight thousand two hundred words, each written in the book of the river, are is formulaic: origin, simple process, into the sea, a river or import another location. The book "Notes" text over "by" Wen twenty times. "Waterways" is a more than three hundred thousand of the giant structure, is a stand-alone classic.