At present, the most important thing in China is the first author, and many official documents of job evaluation clearly require that the corresponding thesis topic be published as the first author.

The importance of the first author's signature.

When the signature of a paper is used in the evaluation of professional titles, the weight of the first author is obviously heavier than that of the second and third authors, but lighter than the personal signature. Due to the complexity and diversity of scientific research, for example, hundreds of people sign a paper in bioinformatics.

The first author refers to the person whose signature ranks first. Some articles have two or more first authors, which are called tied first authors. In this case, it is generally necessary to indicate the name of the person.

In addition, the first author is different from the correspondent and creative contribution, and the correspondent is often the most authoritative person in the field of papers.