Thanks, Ian! I see the problem now. When I click the KB icon after creating a book, I get a list of books. When I click the linked book title, then I get the add chapter link. I can’t get to that link from within the Manage Books page which is where I was last night. The add chapter link is effectively hidden after you create a book the first time unless you click the KB icon then click a linked book title.
In terms of usability, it might be useful to add a link to the right of each linked book title on the Manage Books page or within the Edit: The Basics page after that. The link would appear if the person logged in is an editor for that book. Just a thought.
Appreciate the help!