Missing one

Lu Ban is a craftsman, why is his Lu Ban book listed as a banned book? Just look at the first sentence of the opening paragraph
Luban Luban Book Outline of Noshi Lu Guo Missing one
05-07
There is a forbidden book in Chinese history, scholars are either dead or disabled, cut off their children and grandchildren, but it is conceivable that scholars have repeatedly banned it
Luban Wood kite Luban Book carpenter Missing one
03-17
Luban is just a carpenter? 2,000 years later, an ancient book revealed his other face, hidden too deeply
Luban woodworker Ancient Luban Book Missing one
01-13
Why is the Book of Luban called a banned book? It has nothing to do with the previous volume, the content recorded in the next volume is too weird
Luban Book Luban Missing one carpenter
01-06