Are you planning to, or have actually you written one or more books that were published?
Did you (or will you) go the vanity pressing route or secure a mainstream press publisher? What genre/s do you write in? If it’s a done deal, whether a major publisher of vanity press, which way did you go and how did it go? Was the income worth the effort?
If you went with a publisher, did they approach you for the project or did you solicit a publisher? If you initiated the search (or are planning on doing so), how did/will you go about it. What seems to work well, and what does not? How does the process vary for works of fiction versus technical books, histories, textbooks and such?