Banned books are books or other printed works such as essays or plays which are prohibitedby law or to which free access is not permitted by other means. The practice of banning books is a form of censorship, from political, legal, religious, moral, or commercial motives. This article lists notable banned books and works, giving a brief context for the reason that each book was prohibited. Banned books include fictional works such as novels, poems and plays and non-fiction works such as biographies and dictionaries. Since there are a large number of banned books, some publishers have sought out to publish these books. The best-known examples are the Parisian Obelisk Press, which published Henry Miller's sexually franknovelTropic of Cancer, and Olympia Press, which published William Burroughs's Naked Lunch. Both of these, the work of father Jack Kahane and son Maurice Girodias, specialized in English-language books which were prohibited, at the time, in Great Britain and the United States., also located in Paris, specialized in books prohibited in Spain during the dictatorship of Francisco Franco. Russian literature prohibited during the Soviet period was published outside of Russia. In many territories, distribution, promotion, or certain translations of the Bible have historically been prohibited or impeded. SeeCensorship of the Bible. Many countries throughout the world have their own methods of restricting access to books, although the prohibitions vary strikingly from one country to another: hate speech, for example, is prohibited in a number of countries, such as Sweden, though the same books may be legal in the United States or United Kingdom, where the only prohibition is on child pornography. Despite the opposition from the American Library Association, books continue to be banned by school and public libraries across the United States. This is usually the result of complaints from parents, who find particular books not appropriate for their children. In many libraries, including the British Library and the Library of Congress, erotic books are housed in separate collections in restricted access reading rooms. In some libraries, a special application may be needed to read certain books. Libraries sometimes avoid purchasing controversial books, and the personal opinions of librarians have at times impacted book selection.