Artistic signature, also known as "signature design", is the beautification and artistry of names. It was not invented by modern people, but it has existed since ancient times. The predecessors called it "flower gambling".
"Flower contract" has the function of expressing recognition, responsibility and trust to people, so it becomes vague and often ambiguous. The same is true today, except that the word with "pledge" was discarded and used as "signature" and "signature". Now as long as you mention "signature", it sometimes refers to "artistic signature". There are many signature methods and techniques, diverse shapes and different styles.