Organization and financing have enabled the religious right to bring their textbook censorship campaign into the U.S. federal court system. Denouncing secular humanism, these groups have initiated steps to obtain federal funding for private religious schools. Over the last 100 years public school textbooks have been revised to reflect various public criticisms, and this has resulted in changes in the treatment of history, literature, and religion in the classroom. The Scopes Trial of 1925 was one of the many forces that shaped textbook content. The market has responded to pressures from activist groups, and the result has been the production of textbooks for public schools that are written and designed to comply with perceived areas of future controversy. To prepare for censorship conflicts parents, educators, and legislators need to study the published procedures for textbook selection, course content design, and the establishment of educational goals. (NL)