Library officials suspended Fredric Alan Maxwell for one year after he used an expletive in a conversation with a librarian on Dec. 30, one of three run-ins with staffers in December and January, the Ann Arbor News reported Friday.
"There is a limit to the speech you can use in the library," he said. "But don't tell me the words I can't use. That's my job. I'm a writer."
Maxwell told the News the First Amendment entitles him to curse and he is considering a lawsuit against the library system.
"I thought these battles were fought and won decades ago," he said.
Maxwell's book, "Bad Boy Ballmer; The Man Who Rules Microsoft," the story of Microsoft chief executive Steve Ballmer, was published in 2002, and he is now penning the biography of Apple CEO Steven Jobs. He has also written for Newsweek, The New Yorker, the New York Times and Harper's, the News said.