Book excerpt: This book explores key themes in the making of Renaissance painting, sculpture, architecture, and prints: the use of specific techniques and materials, theory and practice, change and continuity in artistic procedures, conventions and values. It also reconsiders the importance of mathematical perspective, the assimilation of the antique revival, and the illusion of life. Embracing the full significance of Renaissance art requires understanding how it was made. As manifestations of technical expertise and tradition as much as innovation, artworks of this period reveal highly complex creative processes--allowing us an inside view on the vexed issue of the notion of a renaissance.