It's just that there is a shortage of supply, and mining is more difficult in winter, so there is a shortage of supply. This thing is not exclusive to anyone. When Yu Xiuming started selling coal, many people began to look for traces of coal in their own urban areas, and they could always find a lot of it.

Wang Shiyu's belly is actually getting bigger and bigger, and she's already eight months pregnant. It's March now, with the sun and breeze just right. However, it's rainy here, and the weather is very humid. It rains a lot, and it's very humid, which makes it very uncomfortable even when I'm not sleeping.

So the house is more humid, and the business at sea has also been affected to some extent. After all, there is a lot of rain and strong winds, and ships dare not leave the port at will, otherwise it is easy to capsize. In fact, they are mainly afraid of typhoons. Now is the typhoon season, so they have to hide.

Yu Xiuming had already begun looking for other side jobs, starting with the production of various types of paper. Paper was extremely expensive these days, costing one ounce of silver per sheet, and each sheet could only be used for half a month.

Now, Yu Xiuming has improved the method of making these papers. With reference to modern infrastructure technology, he can make some coarse paper and other rice paper at will. Of course, it is not as complicated and comfortable to use as the current rice paper crafts, but for other ordinary people, they can also afford to read books in this way. In fact, because now it is all typesetting printing, and there is no movable type printing. Yu Xiuming spent half a night studying movable type printing in his study just by listening to it.

Once this thing is researched, it will solve the problem that ordinary people in the world cannot afford to read books. Why are most people in the court from aristocratic families? It is because books are too expensive. Even handwritten copies are ridiculously expensive. This is why Mr. Liu took the book that Wang Shiyu bought for Xiao Ruirui to read. Even someone like Mr. Liu could not afford the cost of books, let alone those poor families.

Finally, the movable type printing technique was figured out, but it required extremely skilled workers to operate it. Although Yu Xiuming figured it out, it was still very difficult to implement it. It would not be possible to typeset books overnight, so Zhou Qingyun had to be involved. His Ministry of Industry was actually the most suitable candidate, but that did not stop Yu Xiuming from criticizing Zhou Qingyun.

They also needed a publishing certificate from the court before they could print books. The invention of movable type printing not only represented a milestone for their Yu family, but also enabled more children from poor families to afford books. The practice of a book costing several taels of silver gradually became a thing of the past.

Yu Xiuming returned to his family with the movable type printing technology and discussed it with them for several days before confirming its feasibility. Even the elders of the clan were trembling when they walked out of the door. It really brought honor to the family. Yu Xiuming's decision really brought honor to the family. If it really succeeded, their Yu family would finally have a place in history books and could even be praised by scholars all over the world. How could they not be happy? How could they not be trembling?

The invention of movable type printing finally shocked Zhou Qingyun. Even glass, coal and paper had not surprised him so much before. After all, it only improved his life. Apart from the fact that the paper was cheap, he was not interested in anything else. The main reason was that he could do without it. This time, movable type printing completely changed all of Zhou Qingyun's ideas. He was even so excited that he wanted to come to Jizhou City again and again.

Zhou Qingyun gave up his ambition to be like a god in a painting, and ran directly from the court to Jizhou City. He came to the movable type printing factory where Yu Xiuming was researching and saw the printing technology they had just developed. He also brought people from the Ministry of Works of the court. It was said that those people from the Ministry of Works of the court were scolded.

Because Yu Xiuming, a mere businessman, was able to research movable type printing, but someone from the Ministry of Industry who should have been exposed to these things every day couldn't figure it out, they could scold him whoever they wanted.

Even Yu Xiuming followed these people every day and watched them being scolded. Yu Xiuming knew that he could not take this thing greedily and could only hand it over, so he cooperated with these people in learning.

After they had seen the convenience of movable type printing, they finally understood why Yu Xiuming had asked the mayor of Jizhou City to send the letter by express delivery over a distance of 800 miles.

Zhou Qingyun looked at Yu Xiuming's handsome face and seemed to understand why Wang Shiyu liked this man. After all, Wang Shiyu was really obsessed with looks. She didn't understand it at first, but after spending a long time together, she finally understood it.

"You're lucky. Your face really counts for a lot of points."

Yu Xiuming raised his eyebrows slightly, then smiled faintly. He didn't like this person mentioning his wife. His wife was to be protected, not to be used to attack others.

"I'm quite lucky. After all, my wife and I are childhood sweethearts. As time goes by, we naturally understand each other. Let's not talk about my wife anymore.

You came here today just for this movable type printing technique, right? I know I can't keep this thing, so I have to hand it over as part of the Yu family. Even if you have a problem with me, you can't help but appease those elders."

Zhou Qingyun turned around to look at Yu Xiuming. The smile on his face was really annoying. He simply turned his head away, not wanting to look anymore. He continued walking forward and looked at the printed books in front of him. He found that there was no difference from the ones that had been engraved and typeset before. They were exactly the same.

"Of course. I am the emperor. Even if there are some problems between you and me due to some reasons, I still have a broad perspective. After I return to Jinling, rewards and honors will naturally be bestowed upon you."

The two of them were engaged in a bit of a battle of wits and courage, especially Yu Xiuming, who didn't want Wang Shiyu to see him, so he didn't even mention it. For some reasons, Zhou Qingyun also didn't mention going to the Mo family, as how could he be qualified for that.

Wang Shiyu didn't know about this because her belly was already very big. Even though she controlled her diet and didn't eat too much, her limbs were still slender, but her belly was still surprisingly big. After all, she was pregnant with twins, which was really tiring.

Normally, twins would be born prematurely, so when Wang Shiyu was only eight months pregnant, City Lord Yu and his wife moved directly into her home to prevent her from going into labor at any time. In order to prevent her from going into labor suddenly, even a midwife and a doctor were invited to watch over her at home.