Publishing requires the right to publish, and publishing through a publishing house requires the authorization of this right, so a book can only be published by one publishing house at the same time, but after the publishing contract expires, you can also choose to reprint it with other publishing houses.

Although there can only be one publishing house at a time, there are other rights and interests in the works, such as the right of audio adaptation, which can authorize the novel to be published in the Himalayas, so that different forms can be published at the same time.

However, if you don't sign the contract, the society will not announce it. The contract requires that the author's certificate belongs to you, otherwise anyone who takes someone else's book can publish it.