I just looked into a book that takes about dialogue (Dialogue, busy writer's guide book 3). The very first thing they explain is the formatting of dialogue. The book says that each new speaker should start a new paragraph with following example: They show the wrong version: And the correct version: When reading this, I started to look into a few books I've been reading recently and almost none of them use dialogue formatting as described above. They rarely create a new paragraph for a new speaker. It usually continues. I read a few other topics on this forum that also advocate for new paragraphs for new speakers so I am just wondering... Wouldn't a publisher notice this and let the author correct these mistakes or is it actually a preference from the publisher for some reason? Or is the "create paragraph per speaker" theory more personal instead of a proper writing style rule?