Finally overcoming Sun Qiang's attempts to struggle, Zhang Xuan managed to knock him unconscious.
Upon contact with the unconscious Sun Qiang, a book immediately appeared in Zhang Xuan's mind.
Only then did Zhang Xuan understand how it worked.
For those who were conscious, executing a movement, even if it wasn't a battle technique, would cause the compilation of a book on them. As time went by, the contents detailed inside would also change automatically. After all, humans were beings with learning capabilities and as such, their flaws would constantly change.
On the other hand, those who are unconscious are treated as objects. A book would be compiled upon coming into contact with them.
The two scenarios do not conflict and the difference was clear and simple. It was a matter of whether the person in question was conscious or not.
Knowing that the library had such an ability, Zhang Xuan heaved a sigh of relief.