What is the beginning of calligraphy? What words are usually engraved?

The first chapter is generally covered next to the second word in the couplet (there are also some specific problems, which are mainly analyzed according to the style and composition of the word)

It is basically the same position in vertical works.

The opening content is generally not engraved with a name, which can mainly be

1 favorite words (like a flower in a world, my heart is like a cloud)

2 Alias font size