The grammaticalized expression of negation is a linguistic universal. This volume deals with negation in the Uralic language family in a typological perspective. As in no other major language family before, a comprehensive typological questionnaire provides the basis for the chapters documenting negation in 17 languages. Most of them are endangered. The chapters highlight negative auxiliary verbs—the special Uralic feature—and their ways of combining with the rich inventory of other negators in different types of clauses, as well as negative replies, negative indefinites, abessives/caritives/privatives, scope, polarity and emphatic negation. Selected aspects of negation, such as negative indefinites, negation of non-verbal predicates and information structure, are discussed in more detail in five further chapters.