In tracing the development of the institutional logics perspective from earlier institutional theory, the book analyzes seminal research, illustrating how and why influential works on institutional theory motivated a distinct new approach to scholarship on institutional logics. The book shows how the institutional logics perspective transforms institutional theory. It presents novel theory, further elaborates the institutional logics perspective, and forges new linkages to key literatures on practice, identity, and social and cognitive psychology. It develops the microfoundations of institutional logics and institutional entrepreneurship, proposing a set of mechanisms that go beyond meta-theory, integrating this work with macro theory on institutional logics into a cross-levels model of cultural heterogeneity.