[Therefore, authors inject some spirit energy into their books. When the books are read later, detailed knowledge that cannot be written will be transferred to the reader through their spirit energy.
[As such, every time someone reads a book on smithing, the time spent would be three times that of a normal book.]
After hearing the system's explanation of the forging book in his mind, Wu Mo nodded in understanding.
"No wonder I consumed a lot of energy every time I read the forging notes from the internal reference room, even though they were only a few dozen pages long."
Wu Mo did not know whether to laugh or cry. Only now did he finally understand the question that had been in his heart for half a year.
"It's a little late now, so I'm not going to open this book yet. I'll study it tomorrow."
Considering that he would definitely spend hours reading the book once he opened it, Wu Mo stored the book in his Interspatial Ring first.