This book offers an evidence-based guide to EAL for everyone who works with multilingual learners. It provides a concise, helpful introduction to the latest research underpinning three key areas of EAL practice: (1) How children acquire additional languages? (2) How language works across the curriculum? and (3) How you can establish outstanding EAL practice in your school? Other key features include case studies from experienced EAL specialists, extensive reading recommendations for teachers who want to build on their knowledge, and a detailed chapter on Ofsted based on interviews with senior inspectors. This book will prove an invaluable guide and support for everyone working with bilingual learners. In clear, short chapters it gives a thorough grounding in the evidence and principles needed to create outstanding EAL provision.