Banned Books Week is an annual event celebrating the freedom to read. Typically held during the last week of September or the first week of October, it highlights the value of free and open access to information. Banned Books Week brings together the entire book community –- librarians, booksellers, publishers, journalists, teachers, and readers of all types –- in shared support of the freedom to seek and to express ideas, even those some consider unorthodox or unpopular.
From the American Library Association Website: https://www.ala.org/advocacy/bbooks