Students do not always make choices that adults agree with in their choice of school dress. Dress-code issues are explored in this Research Roundup, and guidance is offered to principals seeking to maintain a positive school climate. In "Do School Uniforms Fit?" Kerry White discusses arguments for and against school uniforms and summarizes the state of research in this area. Deborah Elder evaluates the implementation and effects of a mandatory uniform policy at two middle schools in "Evaluation of School Uniform Policy at John Adams and Truman Middle Schools for Albuquerque Public Schools." Todd DeMitchell and colleagues, in "Dress Codes in the Public Schools: Principals, Policies, and Precepts," report on principals' views on dress codes and look at sample policies. In "School Uniforms: Can Voluntary Programs Work? Experimenting in an At-Risk School," Richard Dougherty describes the adoption of a voluntary uniform policy at a middle school. Benjamin Dowling-Sendor examines a school-uniform case and discusses legal elements. (RT)