The 500th anniversary of Thomas More's Utopia has directed attention toward the importance of utopianism. Utopian Horizons investigates the possibilities of cooperation between the humanities and the social sciences in the analysis of 20th century and contemporary utopian phenomena. The papers deal with major problems of interpreting utopias, the relationship of utopia and ideology, and the highly problematic issue as to whether utopia necessarily leads to dystopia. Besides reflecting the interdisciplinary nature of contemporary utopian investigations, the papers effectively represent the constructive attitudes of utopian thought, a feature that not only defines late 20th- and 21st-century utopianism, but is one of the primary reasons behind the rising importance of the topic.