This book brings together the findings of current studies on the second language (L2) acquisition of Turkish, an Altaic language with more than 140 million native speakers around the world. There is now a growing interest in learning and teaching Turkish as an L2, both in and outside Turkey. Coordinated efforts to produce theoretical and empirical work on the acquisition and teaching of L2 Turkish are therefore an urgent need. The compilation in this volume offers eleven L2 studies that explore the representation and/or processing of various linguistic properties in different domains of grammar (phonology, morpho-syntax, pragmatics) and their interfaces. All studies involve adult L2 Turkish learners with various first-language backgrounds at different proficiency levels.