When Yan Zhenqing was young, his family was poor and lacked paper and pens, so he used a pen to brush loess water to practice calligraphy on the wall. Chu Suiliang was a beginner, and later learned Zhang Xu's brushwork. He also absorbed the characteristics of the four schools in the early Tang Dynasty and accepted the brushwork of Zhuanli and the Northern Wei Dynasty. He completed the vigorous and broad creation of colorful regular script, which set a model for regular script in Tang Dynasty. Contrary to the calligraphy style of the early Tang Dynasty, his regular script changed from thin and hard to vigorous and vigorous, with a broad and magnificent structure. This style also reflects the prosperous momentum of the Tang Dynasty empire, which is in line with his noble personality and is a typical example of the perfect combination of calligraphy beauty and personality beauty. His calligraphy style is called "Yan Ti", which is also called "Yan Liu" with Liu Gongquan, and has the reputation of "Yan Gu".
Liu Gongquan's calligraphy is most famous for regular script, which is as famous as Yan Zhenqing and is called Yan Liu. He followed the brushwork of Wei Jinxia and the early Tang Dynasty and was influenced by Yan Zhenqing. He founded his own Liupai between the charm of Jin people and Yan Shu's grace. His vigorous calligraphy style is comparable to that of Yan Shu. Later generations have the reputation of "Yan Gu". I have studied Liu Ti since I was a child, and of course I have studied Yan Ti for some time. Yan Gu, vigorous and vigorous, belongs to the heroic road; On the other hand, Liu Ti has a strange mentality. Personally, it doesn't matter which one to learn first, both of them can be called masters.
You can simply look at the styles of the two schools and see which one you prefer, but if you want to study further after getting started, you will have to contend. The so-called "practice a thousand songs recognizer."