This practical guide helps principal supervisors develop effective strategies to hire, support, and retain strong school leaders. The authors provide intentional strategies for building collaborative teams, offering professional development, and providing ongoing feedback to ensure principals thrive and foster high-performing, data-driven schools. This book provides K-12 administrators who oversee school principals (principal supervisors) with: (1) Strategies to hire and develop effective school leaders' (2) Techniques for fostering professional growth and continuous learning among principals; (3) Tools for building collaborative teams and professional learning communities; and (4) Guidance on providing constructive feedback to enhance principals' leadership and school performance.