This theme issue addresses the provision of behavioral support for students with behavior disorders. The first article, "Providing Effective Behavior Support to All Students: Procedures and Processes" (George Sugai), summarizes the literature on the effectiveness of various interventions and offers several models for examining the teaching of social skills, academic and curricular modifications, and behavioral interventions. A second article by Gary Sehorn, "Administrative Leadership and Effective Behavior Support," offers eight guidelines for school principals who are attempting to implement the Effective Behavior Supports model to change the culture of a school, including a suggested eight-item list for changing the mind set of teachers and students. A third article,"Establishing a Safe and Positive School Climate" (Jeffrey Sprague), identifies school climate factors that contribute to the development of antisocial behavior as well as school protective factors that hedge against such development. Several briefer articles address the building of school team support for children with difficult behaviors, the Oregon Behavioral Support Cadre, and special needs students in general education settings. (Major articles contain references.) (DB)