At present, only the Illustration of Ziren Inheritance System published by Shandong Pictorial. This is made of professional ancient musical instruments. Shanghai ancient books listed it as a publishing plan, but it hasn't yet.

In addition, there is a "work test", which is also an introduction to professional handicraft technology.

The same is true of "Heavenly Creations" mentioned downstairs, but it is mainly an introduction to agricultural tools, with less design and production.