Interpretation of whirlwind binding: a binding method in which long volumes are folded into volumes, covered with covers and connected end to end in book binding.

Cyclone binding is one of the binding forms of ancient books in China, also known as "Cyclone Leaf" and "Longlin Binding". This form has existed since the mid-Tang Dynasty. Its form is: with long paper as the bottom, the first page is mounted on the front of the scroll, and the scale is mounted on the left side of the scroll at the bottom from the second page. Its characteristic is easy to read and protect the page.

Due to the lack of sufficient information, there is no unified view on the shape of cyclone suit in academic circles. One view is that the whirlwind suit is to glue the first page of a folded book with half a piece of paper, and the last page of the book with the other half, and to bind the first and last pages of the book with the book backpack with a whole piece of paper.

There is also a view that when copying a book, the whirlwind suit is copied page by page, and then pasted on the scroll base paper page by page like fish scales. When the book is rolled up, the scale of the book rotates in one direction, just like a whirlwind, so it is also called whirlwind paper.

Whirlwind clothing evolved from scroll clothing. It looks like a scroll with a long piece of paper at the bottom. Stick the first page at the bottom, stick a piece of paper at the bottom from the right side of the second page, and stick the rest pages at the bottom of the previous page one by one. The leaf scales of books are sub-products. Turn from right to left when reading, and roll from beginning to end when collecting.