To contact a publishing house and publish a novel, you need to follow the following steps: 1. Decide on the genre of the novel and the direction of publication. If the novel is original, consider it as a literary work and find a suitable publishing house for the genre. If the novel has already been published, you need to consider other types such as science fiction, fantasy, romance, etc. 2. Find a suitable publishing house. You can search online or consult a bookstore to find a suitable one. Before contacting the publishing house, it is recommended to understand their style, publishing plan, and publishing process to better communicate with the other party. 3. Send a sample chapter or outline of the novel for feedback. When you contact the publishing house, you can send them a sample chapter or an outline of the novel to show your work and get feedback. They might conduct a preliminary evaluation of the work and decide whether to include it in the publication plan. 4. Cooperate with a publishing house to publish a novel. If the novel was selected, it would need to be published in cooperation with a publishing house. This may require paying a certain publishing fee and accepting the editor's editing and modification opinions. 5 Waiting for publication. The publication process may take some time, possibly months or longer. You may need to pay a publishing fee to the publishing house and wait for them to receive the work before publishing it. I hope these steps will help. I wish your novel a successful publication!