An indispensable resource for morphologists and other linguists alike, written and edited by esteemed scholars in the field The Wiley Blackwell Companion to Morphology is an authoritative, state-of-the-art overview the data that have been central to the development of morphological theory in the past decades. Featuring contributions from an international panel of linguists, this unparalleled collection brings together both seminal work and recent morphological research on topics including derivational and inflectional processes, concatenative and non-concatenative types of morphology, and the interfaces of morphology with syntax, phonology, and semantics. In-depth case studies describe important morphological phenomena, discuss how they have shaped different theoretical proposals, and analyze and contextualize the data behind well-established empirical studies. Organized alphabetically, each chapter explores a specific set of empirical data relating to a morphological problem or issue central to both past and current theoretical debates. Provides detailed and comprehensive information about morphology and its interfaces Describes main morphological phenomena based on a large, cross-linguistically varied body of data Offers a balanced presentation of different morphological approaches, analytical proposals, and academic perspectives Covers a wide range of topics and a large number of subdomains of morphology Online version available at https://www.companiontomorphology.com Available both as a five-volume set and as an online resource, The Wiley Blackwell Companion to Morphology is an essential reference tool for scholars in the field of morphology and linguistics more generally, and will also be a very useful tool in advanced undergraduate as well as graduate courses in these fields.