This work investigates how the epistemological shifts of the Spanish Baroque period fundamentally altered the way reality was perceived and represented in art and literature. Jeremy Robbins, a scholar of Spanish Golden Age culture, examines the intellectual climate of 1580-1720 to argue that the era was defined by a profound skepticism regarding the reliability of human senses. By analyzing a wide array of cultural artifacts, he demonstrates how the tension between appearance and essence became the central preoccupation of the period's thinkers and creators.

Scholars frequently cite this text as a rigorous examination of the intellectual foundations of the Spanish Baroque. It is widely regarded as a dense, academic contribution that successfully bridges the gap between philosophical history and art criticism.