This volume brings together 18 original papers dealing with voice-related phenomena.The languages dealt with represent both typological and geographic diversity, ranging from accusative-type languages to ergative-type and Philippine-type languages, and from Australia to Africa and Siberia. The studies presented here open up many possibilities for theorizing and offer data inviting formal treatments, but the most important contribution they make is in terms of the insights they offer for a better understanding of the fundamentals of voice phenomena.