Start out by drawing a circle on your page, lightly with a pencil or soft charcoal. Begin by adding a light gray tone. Leave a circle of light where you want the highlight to be on the sphere. This highlight end up being the lightest part of your sphere, where the hits it directly. It’s position...

Draw a Horizon line near the top of the page. Draw a basic cube using two point perspective. Mark two vanishing points at both ends of the horizon line. Below and between them, draw a straight vertical line representing the front edge of the cube. Draw orthogonals from the bottom of the edge to each...