CONTRIBUTOR : Merrill Perlman

Merrill Perlman is adjunct assistant professor at the Columbia Graduate School of Journalism and president of Merrill Perlman Consulting, offering consulting and freelance editing services and training in journalism, grammar and usage. Among her clients are The New York Times, ProPublica and the Poynter Institute. She writes the "Language Corner" column and blog for Columbia Journalism Review. Merrill retired in June 2008 after 25 years at The New York Times, most recently as director of copy desks with responsibility for managing 150 copy editors.