'This is the most comprehensive survey of modality - a truly wide-ranging reappraisal of this most difficult field of modern linguistics.' Werner Abraham 'Michael Hegarty's book, Modality and Propositional Attitudes, provides an up-to-date and fully detailed account of the semantics of modality, providing new demonstration in support of the view argued for by Kratzer (1981, 1991) that modal statements involve quantification over possible worlds, as well as considering recent developments and answers to criticism illustrated in Kratzer (2012).' Eugenio Goria, The Linguist List (linguistlist.org) 'Hegarty's text is unique in a number of ways the book is well worth the journey for those who question the empirical scientific import of formal semantics,this book also serves as a powerful testimony to the viability of the field and its formalisms.' Ryan Mark Nefdt, The Linguist List (linguistlist.org)