What are the common formats of calligraphy works?

In addition to the formal scale, the composition layout should be dense, leaving a deep impression on the vision. Take the composition of banners six feet apart as an example to create a cursive script. First, the number of lines, spacing and length of inscriptions should be determined according to the number of words. Write eight five-character poems, with 40 words divided into three lines, the third line is reserved for the position of signature and seal, and then the 40 words are divided into two and a half lines as the scale of creation. It is necessary to give consideration to both blank space and density. The ancients said: "Horse racing is airtight, sparse and not leaking." This blank space is the "ventilation hole" of the whole work, just like building a house, there must be windows outside the door, and blank space is the "window".