This article discusses development during the early adolescent years with a focus on recent research on the biological, cognitive, self-identity, and motivational changes that occur during this time period and the implications of this research for middle school counselors. Peer influences on early adolescents also are discussed, with the issue of school bullying receiving special attention. Studies are presented about how positive relations between teachers and students, and counselors and students, can ease the transition. Research is presented showing the positive effects of counseling programs designed to ease students' transition into middle school, along with suggestions for restructuring the roles of middle school counselors in order to be responsive to the developmental needs of early adolescents.