To apply for an author at 69 Book Bar, one needed to register an account at 69 Book Bar and enter the "Author Center" page to fill in the relevant information of the author, including the type of work, the title of the work, the writing style, the creative experience, and so on. After submitting the application, the system would check if the application met the requirements. If the application met the requirements, the system would prompt that the application was successful and save the author's information in the "Author Library" of 69 Book Bar. If you want to publish your work in 69 Book Bar, you need to publish your work through 69 Book Bar's platform and update your work regularly to maintain the quality and influence of your work.