This document discusses how to draw a sphere using value by capturing the reflected light on the bottom edge from the ground, which usually occurs in the same area as the cast shadow. It emphasizes that capturing this reflection is key to drawing a successful sphere, as shown in a photograph of an egg where the reflected light can be seen on the rounded form along with the shadow showing a variety of values from darkest under the egg to lighter as it moves farther away.

1. Drawing a sphere using value can be very tricky. Carefully observe a spherical shape. Not only does the value on the surface bend with the circular shape, it also has a light reflected tone on the bottom edge. This is light reflecting from the ground back onto the form, it usually occurs in the same area where you will draw a cast shadow. Capturing this reflection is key to drawing a successful sphere.

2. This is an actual photograph of an egg. can you see the reflected light on this rounded form? Notice that the shadow also shows a variety of values. It is darkest directly under the egg, but is a much lighter grey as it moves farther away.