To publish a book, one had to go through many processes, including planning, editing, proofreading, publishing, printing, distribution, etc. Therefore, it was recommended to directly find a publishing house or an intermediary service agency. However, there are a few points to note when choosing a publishing agency: 1. Confirm whether the selected institution is a legal publication and whether it has a publication license. 2. Understand the publishing experience and capabilities of the chosen institution to see if their publication is similar to or suitable for your book. 3 Understand the review, editing, and publishing processes of the institution you choose to ensure that your book is edited and proofread according to their standards. 4. Confirm whether the service fees of the selected institutions are reasonable and whether they provide other value-added services. Intermediary services may have an impact on your book because they may modify, edit, or reformat your book and submit it to the publishing house. If the intermediary services modify your book and submit it to the publishing house, it may cause your book to be different from the publishing house's version. Therefore, you need to pay attention to this when choosing an intermediary service agency. It is recommended to contact them before confirming the selected institution and understand their services and processes to avoid problems such as copyright violation. At the same time, it is recommended to carefully read the relevant laws and regulations before cooperating with a publishing house or intermediary service agency to ensure that your actions are legal and compliant.