Whether you're drawing anatomy or preparing for Halloween, learning to draw skulls is a practice in proportion. Start with a simple circle and make a few faint guidelines that help you place the jawline, teeth, and eye sockets. Once you draw these outlines, give your skull definition by shading in the shadows.

Mark off the width and height of the human skull. Define its proportions. Draw a circle on its top part. Step 2 Sketch jaws. Add lines for orbits. Step 3 Outline the orbits, nasal bone and zygomatic bones.