This paper compiles information pertaining to over 200 challenges to public school library books, text books, reading series, magazines, newspapers, plays, and nonprint materials in Oregon from 1968 through 1993. Although Oregon ranks 29th in the nation in population, it is second only to California in the average number of challenges in school districts each year. The most challenged item has been the reading series "Impressions," with about a dozen known challenges. The greatest number of challenges have occurred in Salem, the state capital, home to a number of special interest groups. A large number of the challenges were spearheaded by religious right organizations, frequently the Oregon Citizens Alliance, a group dedicated to promoting Christian values and fighting equal rights for homosexuals. Most challenges were based on perceived promotion of anti-Christian actions or beliefs, profanity, sexual content, violence, scariness of stories, and negative depictions of particular groups. An attachment lists the challenges. (SLD)