Explore the complex landscape of intensionality with David Parsons' comprehensive study, Theories of Intensionality: A Critical Survey. This scholarly work provides an essential primer on the key theories developed during the twentieth and twenty-first centuries. The book rigorously tests various philosophical approaches—including Fregean, possible-worlds, and Meinongian frameworks—against the fundamental problems of coextensional expression intersubstitution and existential generalisation. Beyond surveying existing theories, the author evaluates a compelling alternative: sententialism. By drawing on the insights of philosophers such as Quine, Davidson, and Scheffler, the text assesses whether linguistic items offer a more viable solution to intensionality problems than traditional intensional entities. This hardcover edition serves as a definitive resource for students and researchers of logic, semantics, and analytic philosophy. Product Summary: David Parsons Theories of Intensionality is a critical survey and analytical guide to 20th and 21st-century theories of intensionality, covering Fregean, possible-worlds, and sententialist approaches in a durable hardcover format.