2. Press: You can go to the website of Great Literature. There are links below, and you can also find the literature studio.
3, this is generally designed by a publishing house, professional art packaging, generally do not ask for your opinion.
4. At your own expense, you give money to the publishing house to help you publish. All copyrights belong to you. Publishing houses invest, that is, they will see if your works have commercial value, and then they will promote packaging and profit sharing. According to the contract.
Generally, you don't need to apply for a patent, because if you publish it, there will be a contract to ensure that you are the author of the work, and then authorize part of the copyright of this work to the publishing house. If you are not the author of the work, there will be legal disputes after signing this contract.
I don't know what you know, so I can't answer. Is there anything else you want to know?