Why are spheres so useful when drawing? Well… many objects, people’s heads for instance, are basically spheres. If you fix in your mind, those three lines, that encircle a sphere at 90 degrees to each other, then you are well on the way to drawing 3D representations of almost any object you will ever want to draw from any angle you wish.

Task: Get yourself a ball and draw the three lines at 90 to degrees to each other onto it with an indelible pen or something similar. Use this model, and the sphere in a cube idea, to draw lots of wireframe drawings of spheres. Really get this idea clear in your head. Soon you will be able to imagine a sphere, turn it inside your head and draw what you see. It’s all practice and brain training.

The index for this course is at http://www.shooraynerdrawing.com/..