Professional Experience
"Another hat tip to copyeditor Mark Steven Long, whose saves would make an NHL goalie proud."
—Adam Plantinga, "Hard Town"
"Mark Steven Long showed a seasoned scout’s eye as a copy editor."
—Ian O'Connor, "Out of the Darkness: The Mystery of Aaron Rodgers"
"Mark Steven Long's careful copy editing spared me from many pitfalls, factual and linguistic."
—John E. Morris, "Subway"
"Virtuoso copy editing"—Blake Gopnik, "Warhol"
"Very detailed and thorough" —James Rosebush, "True Reagan"
"A great copyediting job" —David Baldacci, "The Guilty"
"An author's dream copy editor" —Margaret Mallory, "The Sinner"
I freelance as both a copy editor and a proofreader on fiction, general and trade nonfiction, textbooks, educational and reference books. Titles I have worked on include Antisemitism in America by Sen. Chuck Schumer; Medgar and Myrlie by Joy-Ann Reid; Warhol by Blake Gopnik; Apropos of Nothing by Woody Allen; The Daily Show (The Book); other titles by Michael Moore, David Balducci.