Manuscript Preparation, Copyediting, and Proofreading

Q. How many spaces should there be between the end of a paragraph and a subheading? How many spaces after the subheading and the start of the new paragraph?

Q. As a proofreader, I always mark a bad break when a line ends with an em dash and then a divided word:

This part of the street was relatively modest—boast-
ing a bank.

But I can’t find anything in CMOS that actually says this is necessary. Am I missing it? I also work for one publisher who considers it a bad break when an em dash appears after the portion of the word carried over:

This part of the street was relatively mod-
est—boasting a bank.

Is that rule any more or less valid than the preceding one?

Q. In the manuscript I’m working on, a citation from an article published in Britain uses the word artefact in the title, but the spelling artifact is used throughout the manuscript (as we’re in North America). This citation is the only place where this spelling appears, but obviously I can’t change it. How do I reconcile this inconsistency? Is there some way of saying “yes, this citation is spelled correctly, but it’s an alternate spelling”?

Q. Dear CMOS editors: Some colleagues are having a debate over whether an author’s personal life story written in third person should be considered an autobiography or a biography. The manuscript’s classification will drive decisions about including documentation in the work. Your help with this issue will be greatly appreciated.

Q. Dear CMOS, in one of the articles I’m editing, the authors have a list of documents, where each document title is followed by a descriptive phrase. The title and phrase are separated by a colon. (1) Should the first word in the phrase be lowercase? The authors tend to capitalize it, but I think it should be lowercase (unless it’s a proper noun). (2) Would it be more appropriate to use an em dash instead of a colon? Here’s an example:

Guide: Step-by-step instructions to fill out
Best Practices: Frequently asked questions about best practices
Dedicated Observations: Information on dedicated background exposures

Q. OK, so the one-space-between-sentences debate has been beaten to death. However, are there any instances where putting two spaces between two things is appropriate?

Q. When the publication date appearing at the top of the copyright page (identical with the copyright) differs from the date appearing in the Cataloging-in-Publication (CIP) data at the bottom of the page, which is preferable to use for purposes of documentation? I have found that the CIP date is often, or at least occasionally, one year earlier than the publication date appearing as copyright (e.g., 2011 and 2012).

Q. For a dissertation being submitted for defense should block quotes be double or single spaced? There seems to be some disagreement on this point between different writing centers.

Q. What size font do footnotes need to be if the text is 12 pt. in an essay?

Q. Hello CMS. A quick one, please. Can a book have two dedication pages? One for “To someone” and one for “For someone.”