METHOD FOR LEARNING

From this part to the middle of the thigh, there is another 'face': from the half-thigh to the knee, yet another face. From the joint of the knee to the middle of the leg, there is also a face, and from there to the foot, another face.

From the foot to the sole of the feet, one counts the half-face remaining of the nine. In this way, the figure will have nine and one-third faces, counting the hair.

The width is measured as follows: from the throat to the shoulder joint, there is one face on each side: from the shoulder joint to the elbow, one face and a quarter: from the elbow to the wrist, another face and a quarter: from the wrist to the tip of the middle finger, one face, and the same applies to the other arm, which makes up the nine faces.

Proportions according to Daniel Barbaro:

This author says, following Cardan, that the perfect proportion of a man is ten faces, counting from the soles of the feet to the hairline, and additionally, the top where the hair is placed. This face, which is the tenth part, is measured from the hairline to the chin, and is divided into eighteen parts, of which six go from the chin to the nostrils, six more from the nostrils to the line passing through the eyebrows, and the last six from the eyebrows to the hairline. Because, (as mentioned before,) the third of the face that is added above for the hair is added to the figure, beyond the ten faces.

According to Barbaro, from the nose to the mouth is two parts, and from the mouth to the chin is four parts: at an angle

Translation Notes:

The term "face" refers to a unit of measurement used in proportion theory, not literally to a face.