There is an enormous body of work on Critical thinking skills and their application in various fields of human significance. the present book is about developing critical thinking skills in ESL/EFL learners for better learning outcome. The book mainly focuses on those critical thinking skills that can promote improved learning abilities in ESL or EFL learners. Cognitive developmental theories and critical thinking skills are the basis for the model to teach critical thinking for language pedagogy. the issues included in the book are principally concerned with the teaching techniques and designing tasks to accomplish the objectives of language teaching.