I'm glad to tell you! After receiving it, it is proof, that is, proofreading, which mainly includes the following contents. This means that after your article is hired, you have to fill in something before sending it to you. The first one is orderopenaccess, which means that if you subscribe, you have to pay the publishing house. Others can download your articles at will without paying, which means you have to pay them, so don't subscribe. The other is orderpaperoffprints, that is, if you want to order paper, you should also add it. I suggest not. The third is whether the pictures should be released in color, which should also be added, so it is also recommended not to. The fourth is the transfer of copyright, which is ok. Then you will receive a confirmation email. Remember, some of the above options cannot be modified after reservation. Be careful not to make mistakes. When I send you the proof, there will be a document that allows publishing permission. You can print it out, sign it, then scan it and send it to the publishing house together with the amendments. It's my pleasure to answer your questions!