A paper agency is an organization that helps people publish papers. Actually, I don't like this thing now. If you want to publish a paper, you will be finished submitting it yourself. Why do you need an agency? Why do middlemen do the difference? I have always insisted on writing and submitting my own articles. I have published 1 core articles and three general journals before. Of course, it is hard and the fastest. The evaluation of general journals also took two months to produce results. My colleague is very lazy. His writing quality is average and his contribution is slow. This is the only organization he can find. He found Tao Tao Paper Network and published two popular papers before, and got the publication in about three months. It must be reliable to look at it this way. However, I still suggest that you contribute as much as possible.