Zapotec languages present a wide range of lexical, morphological, phonological, and syntactic means of indicating valence changes. Despite their significant theoretical interest, detailed descriptions of valence-changing phenomena in Zapotec are rare, comparative studies are practically non-existent, and Zapotec contributions to the general typology of valence-changing phenomena still remain largely untapped. The present volume addresses this imbalance by being the first to explore Zapotec valence-changing constructions in depth, and to highlight their broad comparative, typological, and theoretical significance. This book contains both write-ups of contributions to the Special Session on Valence-Changing Devices in Zapotecan (annual meeting of SSILA, 2012) and specially commissioned chapters. It will be of interest to Zapotecanists, Otomangueanists, Mesoamericanists, typologists, morphologists, syntacticians, semanticians, and general linguists with an interest in valence-changing phenomena, and may also be used as supplementary reading in field methods and typology courses.