The purpose of this book is to establish that language learning and teaching are the same as skill learning and teaching. In other words, a parallel exists between the learning and teaching of linguistic behavior and nonlinguistic behavior. To this end, Johnson presents a variety of linguistic theories and learning models, including Universal Grammar and information processing. He states that the processes of proceduralization and declarativization of language are the main ones in language learning and that these issues must be addressed in order to establish an effective framework for teaching. In the final chapter, he examines how communicative language teaching and information-processing theory support each other.