PREFACE

original: "PREFAZIONE"

The work presented here represents more than a mere technical manual; it is the intellectual legacy of a man who viewed painting as a science of the natural world. In this edition, we have sought to reconcile the various manuscript fragments to provide a cohesive narrative of the Master's theories on light, shadow, and the "motions of the mind."

The 1651 edition served as our primary structural guide.

It is essential for the reader to understand that Leonardo did not organize these notes into a finished book during his lifetime. Instead, they were gathered by his pupil, Francesco Melzi, who inherited the chaotic mass of drawings and reflections. Melzi's devotion preserved these insights for posterity.

ON THE NATURE OF THE PAINTER

The painter who draws by practice and judgment of the eye, without the use of reason, is like a mirror that reproduces all the objects placed before it, without knowing them. This is a foundational concept in Leonardo's philosophy: the artist must be a "philosopher-scientist" rather than a mere craftsman.

THE UNIVERSAL PRINCIPLES

Principle	Description
Perspective The mathematical representation of three-dimensional space on a flat surface.	The bridle and rudder of painting.
Chiaroscuro The treatment of light and shade in drawing and painting.	The art of giving relief to figures.
Sfumato The technique of blending colors and tones so subtly that there is no perceptible transition.	The smoky blurring of edges to create depth.

As the Master wrote: The mind of the painter should be like a mirror, which always takes the color of the thing it reflects, and is filled by as many images as there are objects placed before it. original: "La mente del pittore si debbe trasmutare in tante similitudini, quante sono le figure degli oggetti che gli si parano dinanzi."