School librarians serving diverse learning communities, such as the Chicago Public Schools, have always been aware of the need to seek out multicultural books as "mirrors [that] let readers see reflections of their own lives; windows [that] let them see others' lives." But until a colleague sent this author the document "10 Quick Ways to Analyze Children's Books for Racism and Sexism" (Council on Interracial Books for Children 1980a), the author did not think about the unwelcome messages in yesterday's children's books. The author stresses that by reevaluating beloved books for racism and bias, one is questioning their appropriateness for today's school library media center collections. In light of the Council on Interracial Books for Children's "10 Quick Ways to Analyze Children's Books for Racism and Sexism" (1980a), the author considered some old (and not-so-old) books that are often found in school libraries. In this article, the author presents 10 questions for School Library Media Specialists (SLMSs) to ponder as they look at books in their own collections and consider their appropriateness for today's students. "Ten Quick Ways to Analyze Children's Books for Racism and Sexism" is included. (Contains 1 footnote.)