This book is conceived as a contribution to the general understanding of learner language. It presents an innovative approach to the study of English false friends. False friends are a current issue for those learning and working with languages since these lexical items may spring up in different contexts of our everyday life. The book identifies false friends in real samples of learner English, reflects on the difficulty of these words and illustrates the specific problems which should be addressed in the EFL classroom. The ultimate purpose of this book is to cast new light on both the skillful and awkward use of false friends in learner English.