Self-published authors: You should make your book available for sale at all major online retailers, unless you’re exclusive to KU for the ebook. More info here: https://www.janefriedman.com/get-book-distributed-self-published-authors-need-know/

Traditional publishers take care of distribution and retailing for their authors.

Getting libraries and bookstores onboard

• First, you’ll likely need a sell sheet. Here’s an explanation, with templates.
• Regardless of how you publish, if you want to see your book stocked by independent bookstores, here’s the tough love, with actionable advice as well.
• Learn how self-published authors can appeal to libraries.
• More advice on getting into libraries