What calligraphy fonts appeared in the Spring and Autumn Period and the Warring States Period?

Calligraphy in the Spring and Autumn Period and the Warring States Period occupies an important position in the history of calligraphy in China. Jinwen (Jinwen) and Shi Guwen represent the first climax of the development of calligraphy art in China. Their styles are vigorous and simple, or exquisite and elegant, with special aesthetic feeling, which are cherished by future generations. Shu Meng and Jian Shu, whether Dan Shu or Zhu Shu, all have unique fonts. Such as Hou's book, the blade mark is obvious, the turning point is abrupt and powerful, and the line thickness changes slightly, forming a silkworm head when writing. Some people call it Tadpole Book, which forms a special aesthetic feeling. Seal script provided the earliest model for later seal cutting. -common sense culture.