School leaders know from experience what the research on chronic absenteeism and tardiness confirms. Coming to school everyday is important for the academic and social success of children and contributes greatly to their achievement later in life. As early as the first month of school, chronic absence can be an early warning sign of academic trouble, whether a student is in kindergarten or high school. While everyone can help ensure students show up to class every day, the leadership role that you play is irreplaceable. School leaders are uniquely positioned to ensure their school adopts a comprehensive, tiered system to improving attendance that fits with their overall approach to promoting academic achievement.