The present volume focuses on the most significant aspects of Nicolai Hartmann's aesthetic thought. They have until now been quite neglected by scholars, who have privileged the subjects of ontology and ethics. The focus on the structural analysis of the aesthetic, artistic, and natural object foregrounds the will to define and the systematizing intent that charaterize Hartmann's thought, while at the same time revealing some of its moments of deliberate and fecund ambiguity. Hartmann's complex theoretical framework aims at grasping the meaning of the work of art by analyzing its dual stratification: the spiritual aspects emerge, in fact, through the sensible elements, and in this "relation of apparition" the essence of beauty is revealed. Contemporary debates often pay little attention to an analysis of the work of art in itself, privileging instead an aesthetic approach. In this context, Hartmann's thought can offer precise analyses of the work of art and bold conclusions, through a discourse that emphasizes the quality of art as privileged exemplification.