This book proposes an innovative pedagogical approach, Usage-Based Second Language Instruction, which continues the tradition of challenges to existing paradigms such as Steven Krashen's Natural Approach, and Michael Lewis' Lexical Approach. It begins by analysing historical teaching methods to make the case for change. The author argues that Communicative Language Teaching lacks a theory of learning and overemphasises spoken production as a result. The book then examines theories of first language acquisition to establish a theoretical basis for change. It finds that usage-based theories offer a highly plausible account of language learning. The author sets out six principles to guide the application of usage-based theory to second language learning. The book will be of particular interest to students and researchers of Applied Linguistics and Language Education.