True books are also called official books, also called block letters and regular scripts. Among these five fonts, Shu Zhen is the latest one, and people still use it today. The official script and cursive script began to appear in the use stage of Han Dynasty. Its advantages are: first, it is convenient to write, which simply changes the wave of official script; The second is to correct the shortcomings of cursive script, such as no fixed standard and imprecise structure. In a word, when the original works appeared at the end of Han Dynasty, the friendship between seal script and official script was gradually abandoned. Its square shape, straight strokes and easy recognition have become a model of writing, so it is also called regular script. Due to the wide application range, real books can be written in large or small font sizes, with different functions and titles such as lower case, middle case, upper case and list.
Running script is a font between real book and cursive script, which is faster than real book and easier to understand than cursive script, and is widely used in daily application and calligraphy activities. In the running script, according to its writing form, those who prefer regular script method are called "running script", while those who use cursive script method more are called "running script".
Cursive script is created by people in their writing practice for convenience and quickness. Since then, it has been attached importance to by calligraphers in past dynasties and has been developing continuously. Cursive script and official script appeared at the same time, which came into being at the turn of Qin and Han dynasties. It is called "Cao Li", which is a scribbled official script. Later, it developed from "Cao Li" to a mature "Cao Zhang" with independent but unconnected figures. According to legend, Zhang Zhi, a calligrapher at the end of Han Dynasty, abandoned the official script meaning of the word "Cao Zhang" and borrowed it from each other. When writing, the strokes between the upper and lower characters are connected together, creating a "modern grass" that is still popular today. Commonly known as cursive script, it generally refers to the font "Today Grass". Zhang Xu and Huai Su, calligraphers in the Tang Dynasty, were even addicted to cursive characters in the process of writing Today Grass. When they write, the strokes are continuous, and a series of numbers are written one by one. The size of the glyph is on the positive side, which is varied, and they form a "wild grass".
Official script is a font evolved from seal script. It simplifies the complex glyphs of seal script, turns the round strokes of seal script into dense square folds, completes the evolution from pictograph to stroke in the structure of glyph, and is more convenient than seal script in writing, which lays the foundation for the development of real script in the future. The official script appeared at the end of the Warring States period, and there were traces of seal script in the early official script, which was fully mature and widely used in the Eastern Han Dynasty. Before the Sui and Tang Dynasties, official script was called official script, but in the Tang Dynasty, the font of "Golden Calendar" came into being, which means real book.
Seal script generally refers to two fonts, namely, big seal script and small seal script. Dazhuan is an early seal script, also known as Shu Shu, which mainly refers to the ancient characters on bronzes and stone drums. The broad sense of Big Seal even includes Oracle characters, so it can be seen that Big Seal is a font with inconsistent fonts. Xiao Zhuan, also known as "Qin Zhuan", is the result of unified writing after Qin Shihuang unified China. In Qin Dynasty, the orthography of Xiao Zhuan ended the confusion of characters before Qin Dynasty, and the standardization of Chinese characters began after the appearance of Xiao Zhuan.