As a teacher in an inner-city school, Lucy Crehan was exasperated with ever-changing government policy claiming to be based on lessons from `top-performing` education systems. She resolved to find out what was really going on in the classrooms of countries whose teenagers ranked top in the world in reading, maths & science. Cleverlands documents Crehan`s journey around the world, weaving together her experiences with research on policy, history, psychology & culture to offer extensive new insights into what we can learn from these countries.