Dr William DeJean is the founder and CEO of Unleash Learning and host of Unleash Learning TV and radio. With 25 years' experience in education, he began his career as an award-winning high school teacher before completing his doctorate and teaching at universities across the US and Australia. Though his work with both new and experienced teachers and school leadership teams, Dr DeJean has developed a unique international perspective on education and organisational change. Now based in Sydney, he travels internationally to support Unleash Learning clients and is a frequent speaker at educational conferences, including TEDX and Young Minds, helping schools and educators Advance teaching and learning in the era of overwhelm.