18 U.S.C. Sec. 1466 is a federal law prohibiting the production and sale of obscene matter. It is illegal for any person to knowingly distribute, receive, or reproduce any obscene material with the intent of commercially distributing it. This law applies to any obscene material, including books, magazines, films, and other media. It is also illegal for any person to advertise, transport, ship, or receive obscene matter for commercial gain. The elements of 18 U.S.C. Sec. 1466 include: 1. Knowingly distributing, receiving, or reproducing obscene material; 2. The intent of commercially distributing the material; 3. Advertising, transporting, shipping, or receiving obscene material for commercial gain; and 4. Applies to any obscene material, including books, magazines, films, and other media.