How to write big seal characters?

The writing method of the inscription of the big seal character.

2. Seal script is a general term for Oracle Bone Inscriptions, Dazhuan and Xiaozhuan. Oracle Bone Inscriptions, 3000 years ago, is the earliest recognizable writing handed down, mainly used for divination. The brushwork is thin and powerful, with many straight lines. There are Fang Bi, round pen and sharp pen, and there are many "hanging needles" for writing. Big seal script refers to inscriptions on bronze inscriptions, bronzes and six-country scripts, which retain the obvious characteristics of ancient hieroglyphics. Xiao Zhuan, also known as "Qin Zhuan", is a common character in Qin State and a simplified font of Da Zhuan, which is characterized by uniform and neat glyphs and is easier to write than Wen Shu.