Biography

Mark Cassar is a professional educator with over 34 years of experience as a teacher, principal, consultant, editor, and post-secondary lecturer. His career has been defined by a commitment to equity, inclusion, and faith-based education, integrating research-driven practice with a Christ-centred philosophy of learning and leadership. He holds a Master of Education specializing in Leadership and Policy from the University of Toronto, OISE.

For nearly two decades, Mark served as a principal with the Dufferin-Peel Catholic District School Board. He also worked as a Professional Learning Facilitator, mentoring teachers and principals. In his role as corporate coach and mentor, he guided executives in values-based, ethical

Mark co-authored professional texts on leadership and inclusivity, written, edited and reviewed for prominent publishers such as Nelson and Pearson, and collaborated with international platforms, like Stanford University’s YouCubed. Mark has lectured in postgraduate programs at the University of Toronto’s OISE and Western University. Mark received the Ontario Premier’s Award for Education Excellence and recognition as Principal of the Year.

Grounded in his Catholic faith, Mark views teaching as a Christ-centred vocation—an opportunity to inspire learners, foster community, and prepare educators to serve with excellence, justice, and compassion.