International School Leiden - Staff Training - Deon du Plessis

Principal

At the International School Leiden (ISL), we hold a deep belief that staff wellbeing is the cornerstone of a thriving educational community. When our teachers feel emotionally supported, balanced, and inspired, this wellbeing naturally radiates outward to our students, our parents, and the wider school culture. A happy staff leads to happy students, and ultimately, a happy school.

From the very beginning—since ISL first opened its doors three years ago—Karin Holly has been an integral part of our journey

. Through Karin Holly Coaching, she has worked closely with our team to nurture not only professional growth, but also emotional resilience and personal wellbeing

. Karin understands the complex, human side of teaching, and her work helps our educators maintain the clarity, energy, and optimism essential for meaningful learning environments.

Her sessions are much more than professional development; they are opportunities for reflection, connection, and renewal

. Karin empowers our teachers to find balance, manage the emotional demands of the profession, and rediscover the joy in their practice

. We regularly engage her expertise to keep our staff motivated, cohesive, and abreast of the latest educational thinking. The results are tangible—a positive, reflective staff culture that directly enhances the experiences of our students and families.

I have known Karin for many years, since our time teaching together at the International School of The Hague. Even then, her compassion, wisdom, and ability to bring out the best in others were evident. To have her as a long-term collaborator at ISL has been both a privilege and a joy. I can recommend her wholeheartedly to any school that values the emotional wellbeing of its staff as the foundation for educational excellence.

Deon du PlessisPrincipalInternational School LeidenVan Vollenhovenkade, 152313 GG LeidenThe Netherlands+31 (0) 71-5173464admissions@isleiden.nlwww.isleiden.nl