David Ingram has provided us with what is unquestionably the most comprehensive introduction to one of the most demanding systems of thought, without sacrificing critical distance.... The book not only explains Habermas but places him on the map of modern philosophy. The book is a versatile toolbox, which will make it a must for anyone aiming to teach Habermas or the transformations of Critical Theory in the last decades. Above all, however, it is also a substantive contribution to the tradition to which Habermas belongs, for it is a critique of reason by way of an immanent critique of communicative rationality itself.- Eduardo Mendieta (Notre Dame Philosophical Reviews)