Shou Shu, also known as "regular script" and "real script". It is characterized by: square shape, straight strokes, can be used as a model, so the name. It began in the Eastern Han Dynasty. Regular script has "Ou Shi", "Yu Shi", "Yan Shi", "Liu Shi", "Zhao Style" and so on. Cursive Script A type of script produced for the convenience of writing. It began in the early Han Dynasty. At that time, it was commonly used as "Cursive Clerical", i.e., the scribbling clerical script. Later, it gradually developed into a kind of "Zhang Cao" with artistic value. At the end of the Han Dynasty, Zhang Zhi transformed "Zhang Cao" into "Jin Cao", with a single stroke of the character. In the Tang Dynasty, Zhang Xu and Huaisu developed the "Wild Cursive" with continuous and winding strokes and many changes in the shape of the characters. Clerical Script is also called "Clerical Characters" and "Ancient Script". It is a script based on the Clerical Script, which was developed to meet the need for convenience in writing. It is a simplification of the Small Seal Script, with the rounded lines of the Small Seal Script turned into straight and square strokes, making it easier to write. There are two types of scripts: Qin Clerical (also known as "Ancient Clerical") and Han Clerical (also known as "Modern Clerical"). Seal script is short for Big Seal Script and Small Seal Script. The Big Seal Script refers to the Oracle Bone Script, the Golden Script, the Preliminary Script, and the Six Kingdoms Script, which preserve the distinctive features of ancient hieroglyphics. The Small Seal Script, also known as "Qin Seal Script", is a simplified version of the Big Seal Script, which is characterized by an even, rounded and neat shape, and is easier to write than the Preliminary Script. In the history of Chinese writing, it is the transition between the Big Seal Script and the Regular Script. Running Script A type of script between Regular Script and Cursive Script. The strokes are not as scribbly as those of cursive, nor do they require the uprightness of regular script. Those with more regular script than cursive script are called "Running Script", while those with more cursive script than regular script are called "Running Cursive Script". Running script began at the end of the Han Dynasty.