Frontmatter -- Contents -- List of contributors -- List of abbreviations -- List of figures -- Editors' note -- Acknowledgements -- Preface -- 1 Pro subject(ed) to challenge: The concept of the null subject and typologies of Null Subject Languages -- 2 Null subjects and their overt counterparts in East Slavic root clauses: Referential and non-referential readings -- 3 Referential null subjects in Russian: A synchronic and diachronic overview -- 4 Interpreting null subjects in Polish: Against left-peripheral linking -- 5 The features of null subjects: A case study of Czech -- 6 Subject realization in Bulgarian, a consistent null subject language: Theoretical issues and empirical facts -- 7 Types of null arguments in Baltic -- 8 Interpreting null subjects in Finnish finite sentences -- 9 Who on earth is pro? - Licensing null arguments in Hungarian matrix and dependent clauses -- 10 Null subjects in Mari -- 11 Two types of null subjects in South Saami -- 12 Null subjects in Selkup and Nganasan -- 13 Concluding remarks -- Index