Genuine books have zippers on the front and back covers. The front zipper is introduced by the author, and the back zipper is introduced by comic party magazine. Piracy is not strangled or paper is soft. There are obvious differences between pirated text typesetting and genuine text, and there are many typos, most of which are not polished by UV.

Pirated books are obviously shorter than genuine books. Some pirated books are directly pirated with genuine books, but the printing and binding are rough and easy to spread pages. Ill-intentioned and illegible.

The three pirated books have dim colors, serious color deviation, blurred black and white, poor paper quality and thin drawings.

The cover of pirated books is marked with Far-away Publishing House. Shanghai Publishing House, Yunnan Publishing House, etc. Some claim to be authorized by Yunnan Publishing House, all of which are pirated.