A cursory review of Western Aesthetics reveals that Beauty has received far more philosophical attention than Ugliness, its supposed opposite. But as Mark Roche amply demonstrates in his book Theories of Ugliness, a history of the concept of unrivaled comprehensiveness, it has been a recurring topic of discussion since the time of Plato and Aristotle and continuing into the present. Prof. Roche’s history is not only encyclopedic in scope; it is critical both in the sense that it locates with great clarity the weaknesses in myriad theories but also it underlines their continuing insights. This culminates in the presentation of his own sophisticated contribution to the field. In effect, Prof. Roche has provided aestheticians with a foundation for an invigorated exploration of the concept of ugliness by outlining its lineage and advancing a viewpoint that is sure to stimulate lively exchange. In short, Theories of Ugliness is an indispensable text for anyone wishing to join that conversation.