BROOKLYN, N.Y.—Library policies often allow patrons to complain about content they find objectionable, and the American Library Association reports that it’s aware of up to 700 formal book challenges a year. Even so, the association says it opposes getting rid of books, or restricting access to them, even if they are offensive to the librarian or users. In rare cases, a formal objection will be upheld by library officials, and the book placed in a less accessible area while remaining in the collection.

That’s happened at the Brooklyn Library, where a copy of Tintin au Congo, the second book in Belgian cartoonist Hergé’s famous series about an adventurous reporter, was moved from the library’s public areas to a locked back room that’s accessible only to staff members. A patron had objected to the way Africans are portrayed in the book. New York City libraries have received almost two dozen written objections to material since 2005, but the Tintin book is the only challenged item to have been removed from the open stacks, library officials say.

Read more at the New York Times.