Book formats…

Some authors are traditionally published and have their book formats determined by their publishers. Others must decide. (Being a mongrel author, I know both sides well.) A minority must decide on the print formats for their books. Each format has particular followers, but there’s a lot of overlap among those groups.

The “classic formats” are now hardbounds, trade paperbacks, and small paperbacks, among the print versions, various ebook formats (mostly .mobi and .epub), and audiobooks. The me...