Plaintiffs Big Hat Books, Boxcar Books and Community Center, Inc., American Civil Liberties Union of Indiana Foundation, American Booksellers Foundation for Free Expression, Association of American Publishers, Entertainment Merchants Association, Freedom to Read Foundation, National Association of Recording Merchandisers, Great Lakes Booksellers Association, Indianapolis Museum of Art, Indianapolis Downtown Artists and Dealers Association challenges the constitutionality of House Enrolled Act No. 1042, which requires that persons and entities that intend to offer for sale or to sell literature and other matters deemed harmful to minors under Indiana law register with the Secretary of State and pay a fee.