I'm not sure if this is open to everyone or just IBPA members, but for those who want their books available in libraries and bookstores, this may be beneficial. IBPA is the Independent Book Publishers Association and it's a little pricey to join, but I did the math, and the member benefits it offers will help you break even. If you are aiming high and want to learn how to get on bookshelves and not just sell to online retailers, learning about IngramSpark may be helpful. Just thought I'd share. https://www.ibpa-online.org/events/EventDetails.aspx?id=2039594