Here's one promoting their marketing services: https://insights.bookbub.com/launch-book-using-bookbub-marketing-tools/
Here's another on a free way for authors to engage their readers: https://insights.bookbub.com/recommendations/
Check out BookBub.com for more info.
Welcome to My World, Where Every Day Is a Saturday
Denise Barker, Author, Blogger, Copy Editor
Books that Build Character(s)