Book excerpt: The Hungarian-born Karl Mannheim became recognized as a pathbreaking sociologist in Germany when he published 'Ideologie und Utopie' (1929) and in the English-speaking world upon publication of 'Ideology and Utopia' (1936), a book in which he explored the possibilities of an approach to political thought by way of sociology of knowledge. Eighty years later, and viewed from varied substance-rich perspectives worldwide, the many facets of Mannheim’s original work are examined in their bearing on numerous other questions in political theory, cultural studies and social analysis. 'The Anthem Companion to Karl Mannheim' is an international collection of original articles on the classical sociologist and documents the current revitalization of the reception of this social thinker. Using “learning from Mannheim” as their motif, the chapters in this volume favor fresh negotiations with his works, including the writings published posthumously in recent decades.