Write It Well

While Burberry joined many designers in live-streaming its show online, it was the first brand to also do it in 3-D. Crowds packed the London show at the Chelsea College of Art and Design, but viewers in five cities around the world were also able to sit in the front row: the show was live-streamed in 3-D to Tokyo, New York, Paris, Dubai, and Los Angeles, where viewers donned special Burberry 3-D glasses.

— Isabel Wilkinson, “The Best of London Fashion Week,”

“Burberry Prorsum” page, The Daily Beast, February 24, 2010

Sometimes, perfect punctuation isn’t enough to make a sentence perfectly clear. Rewriting is the best answer.

Take this last sentence. Viewers in all five cities probably got the 3-D glasses, but the excellent punctuation still leaves you guessing whether the glasses were a perk of being in L.A.

We’d suggest this revision for clarity:

Crowds packed the London show at the Chelsea College of Art and Design. The show was live-streamed in 3-D to Tokyo, New York, Paris, Dubai, and Los Angeles, enabling all these viewers around the world to don special Burberry 3-D glasses and sit in the front row.

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For more guidelines on how to use commas correctly and confidently and write crystal-clear sentences, see our updated book Professional Writing Skills: A Write It Well Guide, which will ship on March 5th!

Peter Frenette of the U.S. jumped during a training session in Whistler, Canada, on Thursday.

— Jeré Longman, “Battle of Weight Versus Gain in Ski Jumping” (photo caption),

New York Times website, February 11, 2010

Commas like the one after “Canada,” above, are always required. If a place name or street address includes one comma, add the second comma if your sentence goes on to include further information.

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For more guidelines on how to use commas correctly and confidently, see our updated book Professional Writing Skills: A Write It Well Guide, which will ship on March 5th!

Out of more than 30,000 runs in the three sliding sports — bobsled, luge and skeleton — Whistler has seen 340 crashes.

— David Epstein, “Luge dangers exaggerated,”

CNN Opinion, February 16, 2010

“Skeleton” in the sentence above refers to a winter sport (AKA tobogganing). The writer uses only one comma because it’s standard journalistic practice to leave out a comma before “and” in a list of three or more items in a series.

For most writers, though, we’d strongly recommend adding a comma after “luge” in this sentence. Always including the series comma means your reader will always understand how many separate things you’re listing in a sentence.

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For more guidelines on how to use commas correctly and confidently, see our updated book Professional Writing Skills: A Write It Well Guide, which will ship on March 5th!

“For decades, the drug-resistant germ called MRSA was almost exclusively a concern of humans…. But in recent years, the germ has become a growing problem for veterinarians, with an increasing number of infections turning up in birds, cats, dogs, horses, pigs, rabbits and rodents….”

“For protection, Dr. Oehler recommends hand washing or using hand gels before and after playing with a pet, not letting a pet lick people around the face, and not washing pet food or water bowls in the same sink that food is prepared in.”

– Brenda Goodman, “Tie to Pets Has Germ Jumping to and Fro,”
New York Times online, September 21, 2009

Do you see how Goodman uses commas in two different ways here? She leaves out a final comma in “pigs, rabbits and rodents.” Yet she does add a final comma before “and” in the last sentence.

Why? Because the Associated Press tells journalists to use commas in different ways for different kinds of lists. The last sentence isn’t a list of simple items like birds and rodents. The final list item includes a conjunction of its own: “not washing pet food or water bowls in the same sink that food is prepared in.” The list of three complex items would be confusing without a final comma before the list’s main conjunction: “and.”

We recommend that most writers always add a comma before the conjunction in all lists of three or more items. (Not “The flag is red, white and blue,” but “The flag is red, white, and blue.”) Then you’ll never have to ask yourself if you need another comma to make your meaning clear.

For more tips about commas, see Write It Well’s book Professional Writing Skills: A Self-Paced Training Program.