What is the meaning of "planning and layout" in calligraphy art

Calligraphy art is embodied by calligraphy works, but there are many kinds of calligraphy works, such as; There are nave, nave, nave, nave, banners, four screens, banners, couplets, long couplets, hand-rolled round fans, album pages, etc. , and books, the content is more. After the content and form are determined, the layout should consider the size and position of the text and so on. This is the content and layout of the article.