Isometric Sketching shows the object's height, width, and depth. That makes isometric sketching 3D sketching. In class we learned how to make isometric sketches as well as sketch isometric circles. Sketching the circles involved several steps. My isometric circles turned out to be pretty bad since I cannot draw a straight line. With a little practice in sketching and shading we are all going to be able to do good isometric sketches.
An isometric sketch that involves isometric circles.
A more complicated isometric sketch with multiple lines.