This book presents a comprehensive survey of perceptual expertise in visual object recognition, and introduces a novel collaborative model, codified as the "Perceptual Expertise Network" (PEN). This unique group effort is focused on delineating the domain-general principles of high-level visual learning that can account for how different object categories are processed and come to be associated with spatially localized activity in the primate brain. PEN's approach brings together different traditions and techniques to address questions such as how expertise develops, whether there are...