Calligraphy, everyone is talking about profile.

The center includes two states: front and side. The front is the middle of the line where the pen tip basically runs, and the side where the pen tip is on the line when writing. To make an image metaphor, the front line is a person's front photo, and the side line is a side photo. So the opposite side of the center is not the flank, but the inclined plane-the pen tip deviates from the paper and the lines are completely smoothed by the pen belly.

"Side-front" oblique writing, resulting in "side spread" and "side bundle"

By combining the two forms of bristles: emission and bunching, we can get emission side emission and bunching side hair.

In any case, the side paving line is banded, and the side beam line is round like a rope anyway. The brushwork of side biography originated from Wang Xizhi, followed by Wang Xizhi, Ou Yangxun and Yang Ningshi. Profile is a great invention of Yan Zhenqing, which was later inherited by Yang Ningshi and Su Dongpo.

After the Tang dynasty, calligraphy was almost dominated by the positive style, and it was difficult for the border style to have a place. It is no wonder that Mr. Bai Jiao lamented that "Fang has a potential of more than a thousand years", which lasted for a whole thousand years from the end of the Tang Dynasty, ignoring the wonderful use of Fang. There are still a few knowledgeable people who occasionally use side bunks, but no one cares about side bunks after Dongpo.