The author's signature represents copyright and can declare academic achievements. Authors rank is one of the most critical evaluation indicators in terms of promotion of professional titles, application for scientific research funds, job hunting and evaluation of professional titles of talents.

Many colleges and universities attach importance to the first author and the dissemination of the author's works when evaluating their qualifications. Because the author's signature is closely related to academic reputation and economic interests, researchers pay special attention to authors rank.

According to the arrangement order, the authors are divided into the first, second and third authors. According to the classification, authors are divided into ordinary authors and correspondence authors. A correspondent is also called a correspondent because he is responsible for answering letters.

Pay attention to the arrangement of the author of the paper

Authors rank order can be divided into three types: alphabetical order of surnames, ranking of first and last authors and ranking of contributions. If it is impossible to distinguish the contribution of each author, the English alphabetical order of surnames should be used, and the alphabetical order of surnames should be indicated at the signature. Although this method is really in use, it is not advocated by academic circles.

The ranking method of the first author and the last author is that the student or team member is the first author, the tutor or project leader is the last author, and other contributors are in the middle. Although this method has formed conventional knowledge in some countries or fields, it no longer exists at present.