Book excerpt: This is an essential guide for all school leaders, aspiring school leaders and leadership educators to help them incorporate positive psychology in their practice. It provides teaching professionals with the necessary knowledge to understand the gap that currently exists in educational leadership along with a starting point to address it. Research indicates that less than 10% of texts in educational leadership convey positive aspects of leadership. Therefore, we know more about problems, deviance and disengagement, than how to create a positive climate in schools, and help teachers to thrive and to achieve their optimal human potential.This accessible, evidence-based guide to fostering trust, authenticity, growing leadership wisdom, spotting employees' potential, strength-based leadership, developing team's resilience, psychological capital, job crafting, positive identities and many more, is an invaluable resource and must-read for all teaching professionals.