To publish a technical book, you need to go through a series of procedures and contact the publishing house. For details, you can refer to the following steps: 1. Decide on the publishing direction and target publishing house. Do market research and compare to find the most suitable publishing house. 2. Confirm the content and structure of the manuscript, modify and adjust it to ensure that the manuscript meets the requirements of the publishing house. 3. Submit the manuscript to the publishing house for review and editing. If it passes, it will enter the publishing process. 4. Negotiate with the publishing house on the pricing, publication date, printing method, and other details to determine the partnership. 5. Complete the printing and publication of the manuscript and deliver it to the readers. To contact the publishing house, you can visit the official website of the publishing house to find their contact information such as email, phone or online bookstore. You can also find publishing partners through social media platforms or forums in the publishing industry. Before contacting the publishing house, it is recommended to read their publishing policies and terms to ensure that the manuscript meets their requirements.