This book represents an attempt to distinguish and define what beauty is in metaphysical terms, to arrive at a better understanding of beauty as a transcendental property of being, and to establish beauty's place in philosophy alongside truth and the good through an exploration of whether there can truly be a philosophy of beauty, or whether beauty is merely a type of aesthetic. The first part of this work outlines the history of philosophical thought on the subject, through an introduction to three great theories of beauty - harmony, form, and relationism - and a discussion of the evolution of the fine arts. The second part introduces first the theory of aesthetics, then the relationship between nature, being, and beauty, and finally the controversy over whether beauty is natural or a product of human knowledge and experience. The third part moves towards a philosophy of beauty in a first sense: something that is real but immaterial, something that can be understood but not seen. This idea is constructed through an examination of beauty's relation to beings and existence, and finally through a juxtaposition of beauty with ugliness.