Frontmatter -- Table of Contents -- Preface and Acknowledgments -- Abbreviations -- 1. Introduction -- 2. Basics -- 3. Areal distribution -- 4. Language contact -- 5. Contemporary Europe -- 5.1 Distribution: the genetic perspective -- 5.2. Division of labor -- 5.3. Geography -- 6. Change and contact -- 7. Some answers and yet more questions -- Appendix -- Sources -- References -- Index of Authors -- Index of Languages -- Index of Subjects