The Problem. Darwinian Aesthetics Informs Traditional Aesthetics.- From Is to Beauty: From Perception to Cognition. The Beauty, the Beauties and the Beautiful: Some Considerations From the Perspective of Neuronal Aesthetics. The Role of Sensory Biases in Aesthetics.- The Fitness of Beauty: Aesthetics and Adaptation. Beauty and Sex-Appeal: Sexual Selection of Aesthetic Preferences. Aesthetic Fitness. Aesthetic Preferences in the World of Artefacts: Adaptations For the Evaluation of "Honest Signals". Beyond Classicism vs. Constructivism: A Multiple Analysis of Variations in Grooming.- Modular Aesthetics. Landscape Perception as Evolutionary Foundation of Aesthetics. Handaxes, the First Aesthetic Artefacts. What Appeals is Beautiful? The Aesthetics of Pictorial Art. Bodies in Motion: Attractiveness as a Kinetic Signal. Perfumes. Do Women Have Evolved Adaptation for Extra-Pair Copulation?