The focus of this work is a philosophical consideration of a partic- ular artistic issue: the limits of Abstraction in art.1 However, proper treatment of that issue requires that it occur within a broader exam- ination of several things that are relevant both to making and appre- hending works of art in general,2 and to the artistic and aesthetic properties of artworks. Because it is subjects who make and appre- hend works of art; because both making and apprehending works of art depend on objects; because determining the limits of Abstraction must be based on investigating the subject-object relationship; and because consideration of the matter of Abstraction demands a wider reflection on art, it should be understood that this book contains a great deal of philosophy of subjects and objects and philosophy of art in addition to thinking that more specifically targets the particular artistic issue with which the work is concerned.