The corresponding author is usually the leader who actually handles the submission as a whole and undertakes the work of replying to the review comments, and is often the person in charge of the research work involved in the submission. The names of communication authors are mostly at the bottom of the author list (symbolized as related authors), but their contributions are no less than those of the first author of the paper. For some European journals that arrange the authors' signatures in the order of surname and first name, the identification of communication authors is more important.

* * * The same correspondent. Different magazines have different rules about whether there can be two correspondents. Most magazines are not allowed to sign two names, and will automatically choose the first correspondent as the correspondent. If the author of the paper comes from multiple units, the default number one correspondent is the correspondent. Most magazines don't recognize journalists. If your essay group has special requirements, such as adding your boss as a correspondent, you can make a request to the magazine.