The Chicago Manual of Style
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The venerable, time-tested guide to style, usage, and grammar. An indispensable reference, informing the editorial canon with sound, definitive advice at cmos.style/ONLINE. We answer your “Chicago Style” questions at cmos.style/QandA.
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Q. Should “little blue heron” be capitalized?
Q. Should it be “sample A” or “Sample A”?
Q. How would you style the title of a playlist?

We answer these and other questions about Chicago style in the October Q&A at CMOS Online. cmos.style/QandA
A little blue heron stands on a partially submerged log in green, marshy water and announces the CMOS Q&A.
chicagomanual.bsky.social
Family members may deserve our love and respect, but when do they merit an initial capital? Get the latest advice for capitalizing kinship names and similar words for people, this week at CMOS Shop Talk.
Capitalizing Kinship Names and the Like
A kinship name is a name for a family member, whether close or distant. Such names include mom, dad, sister, brother, aunt, uncle, cousin, and so on.
cmosshoptalk.com
chicagomanual.bsky.social
Q. Why is MS Word asking me to change “all of” to “all”?
Q. Do I have to put boat names in italics?
Q. How do I cite a Substack post?

We answer these and other questions about Chicago style in the September Q&A at CMOS Online.
The Chicago Manual of Style, 18th Edition
Find it. Write it. Cite it. The Chicago Manual of Style Online is the venerable, time-tested guide to style, usage, and grammar in an accessible online format. ¶ It is the indispensable reference for ...
www.chicagomanualofstyle.org
chicagomanual.bsky.social
One of the best ways to understand a rule is to consider its exceptions. Find out more in this newly updated post at CMOS Shop Talk (and be sure to read to the end for links to two more “exceptional” posts).
A Few Exceptions Worth Noting
Even the most straightforward rule will be subject to an exception sooner or later. That’s why CMOS qualifies so many of its rules with usually or generally. But some exceptions are so common that the...
cmosshoptalk.com
chicagomanual.bsky.social
Q. Can the first defined use of an abbreviation be plural?
Q. Does “painters tape” need an apostrophe?
Q. How do you cite a book that has a typo on the title page?

We answer these and other questions about Chicago style in the August Q&A at CMOS Online. cmos.style/QandA
A pied French bulldog in a golden collar trots along a wide sandy beach on a sunny day while announcing the CMOS Q&A.
chicagomanual.bsky.social
Q. Should “Fortune” be in italics in “Fortune 500”?
Q. Is a comma needed after a word like “yesterday”?
Q. Does a term following “called” need to be in italics?

We answer these and other questions about Chicago style in the July Q&A at CMOS Online. cmos.style/QandA
A white shepherd dog in a tropical shirt and yellow sunglasses smiles at us from a perfectly blue sky and announces the July Q&A
chicagomanual.bsky.social
Q. Should a unit with a fraction like “1/4” be singular or plural?
Q. How would Chicago style the AI company name “io”?
Q. Why is “due process clause” lowercase in Chicago style?

We answer these and other questions about Chicago style in the June Q&A at CMOS Online. cmos.style/QandA
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chicagomanual.bsky.social
What can a book review teach us about automated source citations (and AI)? This updated post explores some of the limits of automation—and the benefits of editorial intervention—only at CMOS Shop Talk.
Citing Book Reviews
Chicago-style source citations are designed to be both concise and informative. Ideally, readers should be able to tell what a citation refers to despite its abbreviated nature.
cmosshoptalk.com
Reposted by The Chicago Manual of Style
iamhectordiaz.com
A Chicago Pope implies the existence of an MLA Pope and APA Pope
chicagomanual.bsky.social
Q. Should Winston-Salem be spelled with an en dash?
Q. Is it “dogs have a tail” or “dogs have tails”?
Q. Why is Southern California capped but not western Arizona?

We answer these and other questions about Chicago style in the May Q&A at CMOS Online. cmos.style/QandA
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chicagomanual.bsky.social
Q. Can you omit a person’s middle initial in running text?
Q. Should the word “than” be capitalized in a title?
Q. Can “et al.” stand for just one person?

We answer these and other questions about Chicago style in the April Q&A at CMOS Online. cmos.style/QandA
A tabby kitten announces the April CMOS Q&A while leaping full length above a grassy field and against a blue sky with the faintest wisps of cloud on the horizon
chicagomanual.bsky.social
Q. What is Chicago style for elongated words?
Q. Which is preferred, (n + 1)st or (n + 1)th?
Q. How should we cite website content that has been removed?

We answer these and other questions about Chicago style in the March Q&A at CMOS Online.
The Chicago Manual of Style, 18th Edition
Find it. Write it. Cite it. The Chicago Manual of Style Online is the venerable, time-tested guide to style, usage, and grammar in an accessible online format. ¶ It is the indispensable reference for ...
www.chicagomanualofstyle.org
chicagomanual.bsky.social
Q. Do you have any guidance on the recent name changes for the Gulf of Mexico and Denali?
Q. How would I spell out numbers to the right of the decimal point?

We answer these and other questions about Chicago style in the February Q&A at CMOS Online. cmos.style/QandA
A "smiling" border collie wearing red heart-shaped glasses against a white background with heart-shaped illustrated confetti and three cartoon conversation hearts spelling out Q and A in lowercase announcing the February CMOS Q&A
chicagomanual.bsky.social
Looking for a fun, interactive way to explore the new edition of CMOS? All 81 (and counting) of our “Chicago style” workouts have now been updated to refer and link to the 18th edition. Start taking our quizzes today, only at CMOS Shop Talk.
Chicago Style Workouts Now Updated for the 18th Edition
As many of you know by now, the 18th edition of The Chicago Manual of Style was published last September. To find out what’s new, you can check out “What’s New in the 18th Edition?” But now there’s an...
cmosshoptalk.com
chicagomanual.bsky.social
Happy New Year @bcdreyer.social! We're delighted about our first post on Bluesky!🪄
chicagomanual.bsky.social
Q. Can I change “%” to “percent” in quoted text?
Q. Is it wrong to put a space before a question mark?
Q. How would I include an ISBN in a source citation for a book?

We answer these and other questions about Chicago style in the January Q&A at CMOS Online.

Check it out at cmos.style/QandA
Two Welsh Corgi dogs wearing pom pom hats in a snowy field and announcing the monthly January 2025 post of the Chicago Manual of Style Online Questions and Answers at https://cmos.style/QandA