The book copyright fee is the book unit price multiplied by a certain proportion and then multiplied by the book sales or printing volume. This percentage is called royalty rate, and its size reflects the level of royalty standard. The copyright fee of each book is not certain, depending on the field, content, length, quality, best-selling degree, author's reputation and so on. There are usually two methods to calculate the copyright fee: one is the royalty agreed by both parties, such as 5%-30%, which is calculated according to the actual publishing or sales income. There is also a buyout, in which the user pays the author a one-time fee agreed by both parties, and the income of the book has nothing to do with the author. Maybe thousands, maybe tens of thousands, maybe hundreds of thousands, maybe millions or more.

Intellectual property rights are the general name of rights legally produced based on creative achievements and industrial and commercial marks. The three main intellectual property rights are copyright, patent right and trademark right, among which patent right and trademark right are also collectively referred to as industrial property rights. Intellectual property is intellectual property in English, and it is also translated into intellectual property, intellectual property or intellectual property.