When I work on a book, I’ll also work on something else simultaneously. It won’t be another new book – it’s hard enough keeping track of all the characters, threads, and ideas for one prospective novel, let alone two. I’m always surprised when people say they’re working on two (or more) novels simultaneously. (I don’t count swapping back and forth between projects but never finishing anything.) The closest I’ll get to working on more than one novel is if I also revise another, but only as long as it’s more so a copyedit revision, rather than a structural edit revision that might require some rewriting. As far as the copyedit…