Simon Davidson currently works as independent educational consultant, supporting schools with evaluation, leadership and curriculum development. He has had a variety of roles in international education, including founding the International School of Como as head teacher and working as a principal in Germany. He was editor of the book Taking the PYP Forward, with Steven Carber, which reviewed a wide variety of areas of current best practice for PYP schools.

Sandrine Limbourg has over 10 years experience in international education and is currently a PYP Pre-Kindergarten teacher and team leader at St John's International School in Belgium.

Aine Gahan is a PYP Pre-Kindergarten teacher at St John's International School in Belgium. She has over 20 years experience in international education and specialises in EAL for Pre-Kindergarten. She has worked within the PYP since its conception