This book, Language Across the Curriculum (LAC)provides all the essential components a teacher trainee, practising teacher and researcher needs to equip himself or herself while learning to teach, practising in the classroom and for researching the centrality of language in learning the content subject. The author has done the job of addressing both the theoretical and classroom centrered components in order to make the users of the book understand the concepts in LAC and to implement in the classroom. The chapters are divided in such a way that they move from laying foundations on the concepts and taking forward to addressing the content specific issues and their integrations in each subject.