The proceedings of the 10th European Conference on Formal Description of Slavic Languages in Leipzig 2013 offer current formal investigations into Slavic morphology, phonology, semantics, syntax and information structure. In addition to papers of the main conference, the volume presents those of two special workshops: "Formal Perspectives and Diachronic Change in Slavic Languages" and "Various Aspects of Heritage Language". The following languages are addressed: Bosnian/Croatian/Serbian (BCS), Bulgarian, Czech, Macedonian, Old Church Slavonic, Polish, Russian, Serbo-Croatian, Resian, Slovak and Slovene.