Mrs. Langer is to be warmly congratulated on this monumental work on the philosophy of aesthetics, a sequel to her Philosophy in a New Key. She brings all the equipment of her trained and firstrate philosophical mind to bear upon the fundamental problems of art and the arts. In Part I she speaks generally of aesthetics. In Part II she writes of the ways in which aesthetic symbolism works out in visual arts, in music, in song, and opera, in dance, in poetry and other forms of literature, and in drama both comic and tragic. The book concludes (Part III) with a suggestive essay on ‘The Power of the Symbol’.