The Exploring School Administration in Boston Program (ESA) has been designed to provide an introduction to the principalship for people who have knowledge of instruction and leadership potential but have had limited school administration experience, and may not have considered becoming a school leader. Strong educators and community leaders, regardless of their current role in or outside the Boston Public Schools are invited to take advantage of this professional development opportunity. Participants learn from district and school leaders about the role of the school leader (principal, headmaster or assistant principal) as the instructional leader who guides efforts to improve instruction and student learning.